1390027764 has 48 divisors (see below), whose sum is σ = 3417236480. Its totient is φ = 438553440.

The previous prime is 1390027759. The next prime is 1390027781. The reversal of 1390027764 is 4677200931.

1390027764 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 336069 + ... + 340179.

Almost surely, 2^1390027764 is an apocalyptic number.

It is an amenable number.

1390027764 is an abundant number, since it is smaller than the sum of its proper divisors (2027208716).

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

1390027764 is a wasteful number, since it uses less digits than its factorization.

1390027764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5620 (or 5618 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 1390027764 is about 37283.0761069952. The cubic root of 1390027764 is about 1116.0264603636.

The spelling of 1390027764 in words is "one billion, three hundred ninety million, twenty-seven thousand, seven hundred sixty-four".