1390596490 has 16 divisors (see below), whose sum is σ = 2517545448. Its totient is φ = 553022656.

The previous prime is 1390596469. The next prime is 1390596509. The reversal of 1390596490 is 946950931.

It can be written as a sum of positive squares in 4 ways, for example, as 1303715449 + 86881041 = 36107^2 + 9321^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1390596490.

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, 400177 + ... + 403636.

Almost surely, 2^1390596490 is an apocalyptic number.

1390596490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1390596490 is a deficient number, since it is larger than the sum of its proper divisors (1126948958).

1390596490 is a wasteful number, since it uses less digits than its factorization.

1390596490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803993.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 1390596490 is about 37290.7024605330. The cubic root of 1390596490 is about 1116.1786459859.

The spelling of 1390596490 in words is "one billion, three hundred ninety million, five hundred ninety-six thousand, four hundred ninety".