740320 has 48 divisors (see below), whose sum is σ = 2001888. Its totient is φ = 253440.

The previous prime is 740303. The next prime is 740321. The reversal of 740320 is 23047.

740320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 740294 and 740303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740321) by changing a digit.

740320 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 790 + ... + 1450.

It is an arithmetic number, because the mean of its divisors is an integer number (41706).

2⁷⁴⁰³²⁰ is an apocalyptic number.

740320 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 740320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1000944).

740320 is an abundant number, since it is smaller than the sum of its proper divisors (1261568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

740320 is a wasteful number, since it uses less digits than its factorization.

740320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 740320 is about 860.4185028229. The cubic root of 740320 is about 90.4634529842.

Adding to 740320 its reverse (23047), we get a palindrome (763367).

The spelling of 740320 in words is "seven hundred forty thousand, three hundred twenty", and thus it is an iban number.