1390606466 has 16 divisors (see below), whose sum is σ = 2196936960. Its totient is φ = 658335600.

The previous prime is 1390606433. The next prime is 1390606487. The reversal of 1390606466 is 6646060931.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64760 + ... + 83516.

It is an arithmetic number, because the mean of its divisors is an integer number (137308560).

Almost surely, 2^1390606466 is an apocalyptic number.

1390606466 is a deficient number, since it is larger than the sum of its proper divisors (806330494).

1390606466 is a wasteful number, since it uses less digits than its factorization.

1390606466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20729.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 1390606466 is about 37290.8362201761. The cubic root of 1390606466 is about 1116.1813150974.

The spelling of 1390606466 in words is "one billion, three hundred ninety million, six hundred six thousand, four hundred sixty-six".