401872367 has 24 divisors (see below), whose sum is σ = 471621744. Its totient is φ = 340913664.

The previous prime is 401872351. The next prime is 401872369. The reversal of 401872367 is 763278104.

It is not a de Polignac number, because 401872367 - 2⁴ = 401872351 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401872367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401872369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121913 + ... + 125165.

It is an arithmetic number, because the mean of its divisors is an integer number (19650906).

Almost surely, 2^401872367 is an apocalyptic number.

401872367 is a deficient number, since it is larger than the sum of its proper divisors (69749377).

401872367 is a wasteful number, since it uses less digits than its factorization.

401872367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339 (or 3326 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 401872367 is about 20046.7545253590. The cubic root of 401872367 is about 737.9541537509.

The spelling of 401872367 in words is "four hundred one million, eight hundred seventy-two thousand, three hundred sixty-seven".