1137944844 has 36 divisors (see below), whose sum is σ = 3045677544. Its totient is φ = 357002112.

The previous prime is 1137944837. The next prime is 1137944923. The reversal of 1137944844 is 4484497311.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1137944844.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 929082 + ... + 930305.

It is an arithmetic number, because the mean of its divisors is an integer number (84602154).

Almost surely, 2^1137944844 is an apocalyptic number.

It is an amenable number.

1137944844 is an abundant number, since it is smaller than the sum of its proper divisors (1907732700).

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

1137944844 is a wasteful number, since it uses less digits than its factorization.

1137944844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859414 (or 1859409 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 1137944844 is about 33733.4380696661. The cubic root of 1137944844 is about 1044.0157988537.

The spelling of 1137944844 in words is "one billion, one hundred thirty-seven million, nine hundred forty-four thousand, eight hundred forty-four".