400353028 has 24 divisors (see below), whose sum is σ = 755485920. Its totient is φ = 185014080.

The previous prime is 400353007. The next prime is 400353059. The reversal of 400353028 is 820353004.

It is a junction number, because it is equal to n+sod(n) for n = 400352993 and 400353011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61126 + ... + 67357.

It is an arithmetic number, because the mean of its divisors is an integer number (31478580).

Almost surely, 2^400353028 is an apocalyptic number.

It is an amenable number.

400353028 is a deficient number, since it is larger than the sum of its proper divisors (355132892).

400353028 is a wasteful number, since it uses less digits than its factorization.

400353028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128547 (or 128545 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 400353028 is about 20008.8237535343. The cubic root of 400353028 is about 737.0229970357.

The spelling of 400353028 in words is "four hundred million, three hundred fifty-three thousand, twenty-eight".