401872767 has 16 divisors (see below), whose sum is σ = 567479040. Its totient is φ = 252438912.

The previous prime is 401872733. The next prime is 401872789. The reversal of 401872767 is 767278104.

It is not a de Polignac number, because 401872767 - 2⁶ = 401872703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401873767) 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, 38842 + ... + 48087.

It is an arithmetic number, because the mean of its divisors is an integer number (35467440).

Almost surely, 2^401872767 is an apocalyptic number.

401872767 is a deficient number, since it is larger than the sum of its proper divisors (165606273).

401872767 is a wasteful number, since it uses less digits than its factorization.

401872767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87022.

The product of its (nonzero) digits is 131712, while the sum is 42.

The square root of 401872767 is about 20046.7645020337. The cubic root of 401872767 is about 737.9543985895.

The spelling of 401872767 in words is "four hundred one million, eight hundred seventy-two thousand, seven hundred sixty-seven".