401404746 has 16 divisors (see below), whose sum is σ = 803199744. Its totient is φ = 133736544.

The previous prime is 401404741. The next prime is 401404777. The reversal of 401404746 is 647404104.

It is a super-2 number, since 2×401404746² = 322251540222649032, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (401404741) 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, 1915 + ... + 28398.

It is an arithmetic number, because the mean of its divisors is an integer number (50199984).

Almost surely, 2^401404746 is an apocalyptic number.

401404746 is an abundant number, since it is smaller than the sum of its proper divisors (401794998).

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

401404746 is a wasteful number, since it uses less digits than its factorization.

401404746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32525.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 401404746 is about 20035.0878710327. The cubic root of 401404746 is about 737.6678134257.

The spelling of 401404746 in words is "four hundred one million, four hundred four thousand, seven hundred forty-six".