401504016 has 40 divisors (see below), whose sum is σ = 1039933440. Its totient is φ = 133484416.

The previous prime is 401504003. The next prime is 401504041. The reversal of 401504016 is 610405104.

It is a super-2 number, since 2×401504016² = 322410949728256512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401503983 and 401504001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7921 + ... + 29423.

It is an arithmetic number, because the mean of its divisors is an integer number (25998336).

Almost surely, 2^401504016 is an apocalyptic number.

It is an amenable number.

401504016 is an abundant number, since it is smaller than the sum of its proper divisors (638429424).

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

401504016 is a wasteful number, since it uses less digits than its factorization.

401504016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21903 (or 21897 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 401504016 is about 20037.5651215411. The cubic root of 401504016 is about 737.7286184268.

The spelling of 401504016 in words is "four hundred one million, five hundred four thousand, sixteen".