1390465622 has 16 divisors (see below), whose sum is σ = 2567013792. Its totient is φ = 550074240.

The previous prime is 1390465613. The next prime is 1390465627. The reversal of 1390465622 is 2265640931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390465627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3819779 + ... + 3820142.

It is an arithmetic number, because the mean of its divisors is an integer number (160438362).

Almost surely, 2^1390465622 is an apocalyptic number.

1390465622 is a deficient number, since it is larger than the sum of its proper divisors (1176548170).

1390465622 is a wasteful number, since it uses less digits than its factorization.

1390465622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7639943.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 1390465622 is about 37288.9477191299. The cubic root of 1390465622 is about 1116.1436306404.

The spelling of 1390465622 in words is "one billion, three hundred ninety million, four hundred sixty-five thousand, six hundred twenty-two".