403742928 has 40 divisors (see below), whose sum is σ = 1104357888. Its totient is φ = 126664192.

The previous prime is 403742921. The next prime is 403742971. The reversal of 403742928 is 829247304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403742921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246576 + ... + 248207.

Almost surely, 2^403742928 is an apocalyptic number.

403742928 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

403742928 is an abundant number, since it is smaller than the sum of its proper divisors (700614960).

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

403742928 is a wasteful number, since it uses less digits than its factorization.

403742928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494811 (or 494805 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 403742928 is about 20093.3553196075. The cubic root of 403742928 is about 739.0973459424.

The spelling of 403742928 in words is "four hundred three million, seven hundred forty-two thousand, nine hundred twenty-eight".