740388 has 48 divisors (see below), whose sum is σ = 1935360. Its totient is φ = 218400.

The previous prime is 740387. The next prime is 740423. The reversal of 740388 is 883047.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 740388.

It is not an unprimeable number, because it can be changed into a prime (740387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9333 + ... + 9411.

It is an arithmetic number, because the mean of its divisors is an integer number (40320).

2⁷⁴⁰³⁸⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 740388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (967680).

740388 is an abundant number, since it is smaller than the sum of its proper divisors (1194972).

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

740388 is a wasteful number, since it uses less digits than its factorization.

740388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 740388 is about 860.4580175697. The cubic root of 740388 is about 90.4662226542.

It can be divided in two parts, 740 and 388, that added together give a triangular number (1128 = T₄₇).

The spelling of 740388 in words is "seven hundred forty thousand, three hundred eighty-eight".