1244561612 has 24 divisors (see below), whose sum is σ = 2490470304. Its totient is φ = 533094912.

The previous prime is 1244561609. The next prime is 1244561621. The reversal of 1244561612 is 2161654421.

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, 45458 + ... + 67494.

It is an arithmetic number, because the mean of its divisors is an integer number (103769596).

Almost surely, 2^1244561612 is an apocalyptic number.

It is an amenable number.

1244561612 is an abundant number, since it is smaller than the sum of its proper divisors (1245908692).

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

1244561612 is a wasteful number, since it uses less digits than its factorization.

1244561612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24065 (or 24063 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 1244561612 is about 35278.3448024422. The cubic root of 1244561612 is about 1075.6528536993.

The spelling of 1244561612 in words is "one billion, two hundred forty-four million, five hundred sixty-one thousand, six hundred twelve".