1390140264 has 16 divisors (see below), whose sum is σ = 3475350720. Its totient is φ = 463380080.

The previous prime is 1390140253. The next prime is 1390140287. The reversal of 1390140264 is 4620410931.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28961232 + ... + 28961279.

It is an arithmetic number, because the mean of its divisors is an integer number (217209420).

Almost surely, 2^1390140264 is an apocalyptic number.

It is an amenable number.

1390140264 is an abundant number, since it is smaller than the sum of its proper divisors (2085210456).

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

1390140264 is a wasteful number, since it uses less digits than its factorization.

1390140264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57922520 (or 57922516 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1390140264 is about 37284.5848039106. The cubic root of 1390140264 is about 1116.0565675775.

The spelling of 1390140264 in words is "one billion, three hundred ninety million, one hundred forty thousand, two hundred sixty-four".