401042528 has 12 divisors (see below), whose sum is σ = 789552540. Its totient is φ = 200521248.

The previous prime is 401042497. The next prime is 401042533. The reversal of 401042528 is 825240104.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 401042497 and 401042506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6266258 + ... + 6266321.

It is an arithmetic number, because the mean of its divisors is an integer number (65796045).

Almost surely, 2^401042528 is an apocalyptic number.

It is an amenable number.

401042528 is a deficient number, since it is larger than the sum of its proper divisors (388510012).

401042528 is a wasteful number, since it uses less digits than its factorization.

401042528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12532589 (or 12532581 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 401042528 is about 20026.0462398348. The cubic root of 401042528 is about 737.4458620798.

The spelling of 401042528 in words is "four hundred one million, forty-two thousand, five hundred twenty-eight".