740220 has 72 divisors (see below), whose sum is σ = 2275056. Its totient is φ = 179712.

The previous prime is 740191. The next prime is 740227. The reversal of 740220 is 22047.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 740220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10104 + ... + 10176.

It is an arithmetic number, because the mean of its divisors is an integer number (31598).

2⁷⁴⁰²²⁰ 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 740220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1137528).

740220 is an abundant number, since it is smaller than the sum of its proper divisors (1534836).

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

740220 is a wasteful number, since it uses less digits than its factorization.

740220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 740220 is about 860.3603896043. The cubic root of 740220 is about 90.4593796318.

Adding to 740220 its reverse (22047), we get a palindrome (762267).

The spelling of 740220 in words is "seven hundred forty thousand, two hundred twenty", and thus it is an iban number.