1390037900 has 18 divisors (see below), whose sum is σ = 3016382460. Its totient is φ = 556015120.

The previous prime is 1390037893. The next prime is 1390037903. The reversal of 1390037900 is 97300931.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1390037903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6950090 + ... + 6950289.

Almost surely, 2^1390037900 is an apocalyptic number.

1390037900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1390037900 is an abundant number, since it is smaller than the sum of its proper divisors (1626344560).

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

1390037900 is a wasteful number, since it uses less digits than its factorization.

1390037900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13900393 (or 13900386 counting only the distinct ones).

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 1390037900 is about 37283.2120397371. The cubic root of 1390037900 is about 1116.0291730233.

The spelling of 1390037900 in words is "one billion, three hundred ninety million, thirty-seven thousand, nine hundred".