401446920 has 64 divisors (see below), whose sum is σ = 1376392320. Its totient is φ = 91759104.

The previous prime is 401446919. The next prime is 401446933. The reversal of 401446920 is 29644104.

It is a super-2 number, since 2×401446920² = 322319259154972800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238117 + ... + 239796.

It is an arithmetic number, because the mean of its divisors is an integer number (21506130).

Almost surely, 2^401446920 is an apocalyptic number.

401446920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401446920 is an abundant number, since it is smaller than the sum of its proper divisors (974945400).

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

401446920 is a wasteful number, since it uses less digits than its factorization.

401446920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477934 (or 477930 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 401446920 is about 20036.1403468832. The cubic root of 401446920 is about 737.6936471287.

The spelling of 401446920 in words is "four hundred one million, four hundred forty-six thousand, nine hundred twenty".