12409492 has 6 divisors (see below), whose sum is σ = 21716618. Its totient is φ = 6204744.

The previous prime is 12409471. The next prime is 12409519. The reversal of 12409492 is 29490421.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8099716 + 4309776 = 2846^2 + 2076^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1551183 + ... + 1551190.

Almost surely, 2^12409492 is an apocalyptic number.

It is an amenable number.

12409492 is a deficient number, since it is larger than the sum of its proper divisors (9307126).

12409492 is a wasteful number, since it uses less digits than its factorization.

12409492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102377 (or 3102375 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 12409492 is about 3522.7108879384. The cubic root of 12409492 is about 231.5179497423.

The spelling of 12409492 in words is "twelve million, four hundred nine thousand, four hundred ninety-two".