1390585499 has 8 divisors (see below), whose sum is σ = 1472714208. Its totient is φ = 1308493440.

The previous prime is 1390585487. The next prime is 1390585517. The reversal of 1390585499 is 9945850931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1390585499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1390585499.

It is not an unprimeable number, because it can be changed into a prime (1390585459) 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, 126314 + ... + 136880.

It is an arithmetic number, because the mean of its divisors is an integer number (184089276).

Almost surely, 2^1390585499 is an apocalyptic number.

1390585499 is a deficient number, since it is larger than the sum of its proper divisors (82128709).

1390585499 is a wasteful number, since it uses less digits than its factorization.

1390585499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18325.

The product of its (nonzero) digits is 1749600, while the sum is 53.

The square root of 1390585499 is about 37290.5550910683. Note that the first 3 decimals coincide. The cubic root of 1390585499 is about 1116.1757052929.

The spelling of 1390585499 in words is "one billion, three hundred ninety million, five hundred eighty-five thousand, four hundred ninety-nine".