1244262672 has 30 divisors (see below), whose sum is σ = 3482207742. Its totient is φ = 414754176.

The previous prime is 1244262659. The next prime is 1244262703. The reversal of 1244262672 is 2762624421.

1244262672 is a `hidden beast` number, since 1 + 24 + 4 + 2 + 626 + 7 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 689377536 + 554885136 = 26256^2 + 23556^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4320213 + ... + 4320500.

Almost surely, 2^1244262672 is an apocalyptic number.

1244262672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1244262672 is an abundant number, since it is smaller than the sum of its proper divisors (2237945070).

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

1244262672 is a wasteful number, since it uses less digits than its factorization.

1244262672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8640727 (or 8640718 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 1244262672 is about 35274.1076712084. The cubic root of 1244262672 is about 1075.5667239302.

The spelling of 1244262672 in words is "one billion, two hundred forty-four million, two hundred sixty-two thousand, six hundred seventy-two".