1137999400 has 48 divisors (see below), whose sum is σ = 2649679740. Its totient is φ = 454540800.

The previous prime is 1137999337. The next prime is 1137999419. The reversal of 1137999400 is 49997311.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 326091364 + 811908036 = 18058^2 + 28494^2 .

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, 148462 + ... + 155938.

Almost surely, 2^1137999400 is an apocalyptic number.

1137999400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1137999400 is an abundant number, since it is smaller than the sum of its proper divisors (1511680340).

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

1137999400 is a wasteful number, since it uses less digits than its factorization.

1137999400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8254 (or 8245 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 1137999400 is about 33734.2466938273. The cubic root of 1137999400 is about 1044.0324828538.

The spelling of 1137999400 in words is "one billion, one hundred thirty-seven million, nine hundred ninety-nine thousand, four hundred".