401547660 has 24 divisors (see below), whose sum is σ = 1124333616. Its totient is φ = 107079360.

The previous prime is 401547637. The next prime is 401547673. The reversal of 401547660 is 66745104.

It is a super-2 number, since 2×401547660² = 322481046502951200, which contains 22 as substring.

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, 3346171 + ... + 3346290.

It is an arithmetic number, because the mean of its divisors is an integer number (46847234).

Almost surely, 2^401547660 is an apocalyptic number.

It is an amenable number.

401547660 is an abundant number, since it is smaller than the sum of its proper divisors (722785956).

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

401547660 is a wasteful number, since it uses less digits than its factorization.

401547660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6692473 (or 6692471 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 401547660 is about 20038.6541464241. The cubic root of 401547660 is about 737.7553481398.

The spelling of 401547660 in words is "four hundred one million, five hundred forty-seven thousand, six hundred sixty".