1319608690 has 16 divisors (see below), whose sum is σ = 2377729728. Its totient is φ = 527302576.

The previous prime is 1319608687. The next prime is 1319608699. The reversal of 1319608690 is 968069131.

It is a super-2 number, since 2×1319608690² = 3482734189447032200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1319608699) 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, 57292 + ... + 76951.

It is an arithmetic number, because the mean of its divisors is an integer number (148608108).

Almost surely, 2^1319608690 is an apocalyptic number.

1319608690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1319608690 is a deficient number, since it is larger than the sum of its proper divisors (1058121038).

1319608690 is a wasteful number, since it uses less digits than its factorization.

1319608690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135233.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 1319608690 is about 36326.4186233656. The cubic root of 1319608690 is about 1096.8529028213.

The spelling of 1319608690 in words is "one billion, three hundred nineteen million, six hundred eight thousand, six hundred ninety".