1319739090 has 32 divisors (see below), whose sum is σ = 3173100480. Its totient is φ = 351294144.

The previous prime is 1319739089. The next prime is 1319739151. The reversal of 1319739090 is 909379131.

It is a super-2 number, since 2×1319739090² = 3483422531348056200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22780 + ... + 56199.

It is an arithmetic number, because the mean of its divisors is an integer number (99159390).

Almost surely, 2^1319739090 is an apocalyptic number.

1319739090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1319739090 is an abundant number, since it is smaller than the sum of its proper divisors (1853361390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1319739090 is a wasteful number, since it uses less digits than its factorization.

1319739090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79546.

The product of its (nonzero) digits is 45927, while the sum is 42.

The square root of 1319739090 is about 36328.2134160214. The cubic root of 1319739090 is about 1096.8890309323.

The spelling of 1319739090 in words is "one billion, three hundred nineteen million, seven hundred thirty-nine thousand, ninety".