1320577090 has 16 divisors (see below), whose sum is σ = 2716615872. Its totient is φ = 452769264.

The previous prime is 1320577087. The next prime is 1320577127. The reversal of 1320577090 is 907750231.

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, 9432624 + ... + 9432763.

It is an arithmetic number, because the mean of its divisors is an integer number (169788492).

Almost surely, 2^1320577090 is an apocalyptic number.

1320577090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320577090 is an abundant number, since it is smaller than the sum of its proper divisors (1396038782).

1320577090 is a wasteful number, since it uses less digits than its factorization.

1320577090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18865401.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 1320577090 is about 36339.7453210668. The cubic root of 1320577090 is about 1097.1211471460.

The spelling of 1320577090 in words is "one billion, three hundred twenty million, five hundred seventy-seven thousand, ninety".