1244173812 has 48 divisors (see below), whose sum is σ = 3372200832. Its totient is φ = 349649280.

The previous prime is 1244173787. The next prime is 1244173841. The reversal of 1244173812 is 2183714421.

It is a super-2 number, since 2×1244173812² = 3095936948933222688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116283 + ... + 126530.

It is an arithmetic number, because the mean of its divisors is an integer number (70254184).

Almost surely, 2^1244173812 is an apocalyptic number.

1244173812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1244173812 is an abundant number, since it is smaller than the sum of its proper divisors (2128027020).

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

1244173812 is a wasteful number, since it uses less digits than its factorization.

1244173812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242888 (or 242886 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 1244173812 is about 35272.8480846103. The cubic root of 1244173812 is about 1075.5411191720.

The spelling of 1244173812 in words is "one billion, two hundred forty-four million, one hundred seventy-three thousand, eight hundred twelve".