401146857 has 16 divisors (see below), whose sum is σ = 596896000. Its totient is φ = 266259312.

The previous prime is 401146853. The next prime is 401146891. The reversal of 401146857 is 758641104.

It is a happy number.

It is not a de Polignac number, because 401146857 - 2² = 401146853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401146853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26257 + ... + 38622.

It is an arithmetic number, because the mean of its divisors is an integer number (37306000).

Almost surely, 2^401146857 is an apocalyptic number.

It is an amenable number.

401146857 is a deficient number, since it is larger than the sum of its proper divisors (195749143).

401146857 is a wasteful number, since it uses less digits than its factorization.

401146857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65117 (or 65111 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 401146857 is about 20028.6509031437. The cubic root of 401146857 is about 737.5098040256.

It can be divided in two parts, 40114 and 6857, that added together give a triangular number (46971 = T₃₀₆).

The spelling of 401146857 in words is "four hundred one million, one hundred forty-six thousand, eight hundred fifty-seven".