1390112766 has 40 divisors (see below), whose sum is σ = 3559868400. Its totient is φ = 397174752.

The previous prime is 1390112741. The next prime is 1390112777. The reversal of 1390112766 is 6672110931.

It is a self number, because there is not a number n which added to its sum of digits gives 1390112766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 611791 + ... + 614058.

It is an arithmetic number, because the mean of its divisors is an integer number (88996710).

Almost surely, 2^1390112766 is an apocalyptic number.

1390112766 is an abundant number, since it is smaller than the sum of its proper divisors (2169755634).

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

1390112766 is a wasteful number, since it uses less digits than its factorization.

1390112766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225870 (or 1225861 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1390112766 is about 37284.2160437899. The cubic root of 1390112766 is about 1116.0492087216.

The spelling of 1390112766 in words is "one billion, three hundred ninety million, one hundred twelve thousand, seven hundred sixty-six".