402681141 has 12 divisors (see below), whose sum is σ = 583865568. Its totient is φ = 267431784.

The previous prime is 402681137. The next prime is 402681143. The reversal of 402681141 is 141186204.

It is a happy number.

It is not a de Polignac number, because 402681141 - 2² = 402681137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402681143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82695 + ... + 87428.

It is an arithmetic number, because the mean of its divisors is an integer number (48655464).

Almost surely, 2^402681141 is an apocalyptic number.

It is an amenable number.

402681141 is a deficient number, since it is larger than the sum of its proper divisors (181184427).

402681141 is a wasteful number, since it uses less digits than its factorization.

402681141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170392 (or 170389 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 402681141 is about 20066.9165792854. The cubic root of 402681141 is about 738.4488698573.

The spelling of 402681141 in words is "four hundred two million, six hundred eighty-one thousand, one hundred forty-one".