402079254 has 32 divisors (see below), whose sum is σ = 847445760. Its totient is φ = 126828000.

The previous prime is 402079241. The next prime is 402079289. The reversal of 402079254 is 452970204.

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 15 ways as a sum of consecutive naturals, for example, 146959 + ... + 149669.

It is an arithmetic number, because the mean of its divisors is an integer number (26482680).

Almost surely, 2^402079254 is an apocalyptic number.

402079254 is an abundant number, since it is smaller than the sum of its proper divisors (445366506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402079254 is a wasteful number, since it uses less digits than its factorization.

402079254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4036.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 402079254 is about 20051.9139734839. The cubic root of 402079254 is about 738.0807668599.

The spelling of 402079254 in words is "four hundred two million, seventy-nine thousand, two hundred fifty-four".