1390120704 has 360 divisors, whose sum is σ = 4845571808. Its totient is φ = 388177920.

The previous prime is 1390120679. The next prime is 1390120717. The reversal of 1390120704 is 4070210931.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8854194 + ... + 8854350.

Almost surely, 2^1390120704 is an apocalyptic number.

1390120704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1390120704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2422785904).

1390120704 is an abundant number, since it is smaller than the sum of its proper divisors (3455451104).

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

1390120704 is an equidigital number, since it uses as much as digits as its factorization.

1390120704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 1390120704 is about 37284.3224961913. The cubic root of 1390120704 is about 1116.0513330533.

The spelling of 1390120704 in words is "one billion, three hundred ninety million, one hundred twenty thousand, seven hundred four".