401839695 has 24 divisors (see below), whose sum is σ = 697658832. Its totient is φ = 213964800.

The previous prime is 401839681. The next prime is 401839709. The reversal of 401839695 is 596938104.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (401839681) and next prime (401839709).

It is not a de Polignac number, because 401839695 - 2⁵ = 401839663 is a prime.

It is a super-2 number, since 2×401839695² = 322950280955386050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 401839695.

It is a congruent number.

It is an unprimeable number.

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, 21880 + ... + 35810.

It is an arithmetic number, because the mean of its divisors is an integer number (29069118).

Almost surely, 2^401839695 is an apocalyptic number.

401839695 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

401839695 is a deficient number, since it is larger than the sum of its proper divisors (295819137).

401839695 is a wasteful number, since it uses less digits than its factorization.

401839695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14583 (or 14580 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 401839695 is about 20045.9396137971. The cubic root of 401839695 is about 737.9341547881.

The spelling of 401839695 in words is "four hundred one million, eight hundred thirty-nine thousand, six hundred ninety-five".