407275681 has 16 divisors (see below), whose sum is σ = 447517440. Its totient is φ = 368928000.

The previous prime is 407275663. The next prime is 407275709. The reversal of 407275681 is 186572704.

It is a cyclic number.

It is not a de Polignac number, because 407275681 - 2⁷ = 407275553 is a prime.

It is a super-2 number, since 2×407275681² = 331746960668027522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (407275601) 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, 179806 + ... + 182056.

It is an arithmetic number, because the mean of its divisors is an integer number (27969840).

Almost surely, 2^407275681 is an apocalyptic number.

It is an amenable number.

407275681 is a deficient number, since it is larger than the sum of its proper divisors (40241759).

407275681 is a wasteful number, since it uses less digits than its factorization.

407275681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 407275681 is about 20181.0723451456. The cubic root of 407275681 is about 741.2467909055.

The spelling of 407275681 in words is "four hundred seven million, two hundred seventy-five thousand, six hundred eighty-one".