1244409992 has 32 divisors (see below), whose sum is σ = 2671331520. Its totient is φ = 532370880.

The previous prime is 1244409989. The next prime is 1244410099. The reversal of 1244409992 is 2999044421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12518 + ... + 51434.

It is an arithmetic number, because the mean of its divisors is an integer number (83479110).

Almost surely, 2^1244409992 is an apocalyptic number.

It is an amenable number.

1244409992 is an abundant number, since it is smaller than the sum of its proper divisors (1426921528).

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

1244409992 is a wasteful number, since it uses less digits than its factorization.

1244409992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39501 (or 39497 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 1244409992 is about 35276.1958266477. The cubic root of 1244409992 is about 1075.6091710865.

The spelling of 1244409992 in words is "one billion, two hundred forty-four million, four hundred nine thousand, nine hundred ninety-two".