401477566 has 16 divisors (see below), whose sum is σ = 711980640. Its totient is φ = 166128480.

The previous prime is 401477561. The next prime is 401477567. The reversal of 401477566 is 665774104.

It is a super-2 number, since 2×401477566² = 322368472002568712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401477561) 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, 494025 + ... + 494836.

It is an arithmetic number, because the mean of its divisors is an integer number (44498790).

Almost surely, 2^401477566 is an apocalyptic number.

401477566 is a deficient number, since it is larger than the sum of its proper divisors (310503074).

401477566 is a wasteful number, since it uses less digits than its factorization.

401477566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988899.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 401477566 is about 20036.9051003392. The cubic root of 401477566 is about 737.7124182149.

The spelling of 401477566 in words is "four hundred one million, four hundred seventy-seven thousand, five hundred sixty-six".