742724928 has 84 divisors (see below), whose sum is σ = 2322441888. Its totient is φ = 225066240.

The previous prime is 742724921. The next prime is 742724929. The reversal of 742724928 is 829427247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742724921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52276 + ... + 64947.

Almost surely, 2^742724928 is an apocalyptic number.

It is an amenable number.

742724928 is an abundant number, since it is smaller than the sum of its proper divisors (1579716960).

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

742724928 is a wasteful number, since it uses less digits than its factorization.

742724928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117252 (or 117239 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 742724928 is about 27252.9801673138. The cubic root of 742724928 is about 905.6130388480.

The spelling of 742724928 in words is "seven hundred forty-two million, seven hundred twenty-four thousand, nine hundred twenty-eight".