12279402 has 24 divisors (see below), whose sum is σ = 26759460. Its totient is φ = 4069440.

The previous prime is 12279391. The next prime is 12279431. The reversal of 12279402 is 20497221.

It can be written as a sum of positive squares in 2 ways, for example, as 11964681 + 314721 = 3459^2 + 561^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1374 + ... + 5142.

Almost surely, 2^12279402 is an apocalyptic number.

12279402 is an abundant number, since it is smaller than the sum of its proper divisors (14480058).

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

12279402 is a wasteful number, since it uses less digits than its factorization.

12279402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3958 (or 3955 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 12279402 is about 3504.1977683915. The cubic root of 12279402 is about 230.7060972424.

It can be divided in two parts, 122 and 79402, that added together give a square (79524 = 282²).

The spelling of 12279402 in words is "twelve million, two hundred seventy-nine thousand, four hundred two".