1179393990 has 16 divisors (see below), whose sum is σ = 2830545648. Its totient is φ = 314505056.

The previous prime is 1179393979. The next prime is 1179394033. The reversal of 1179393990 is 993939711.

It is a congruent number.

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, 19656537 + ... + 19656596.

It is an arithmetic number, because the mean of its divisors is an integer number (176909103).

Almost surely, 2^1179393990 is an apocalyptic number.

1179393990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1179393990 is an abundant number, since it is smaller than the sum of its proper divisors (1651151658).

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

1179393990 is a wasteful number, since it uses less digits than its factorization.

1179393990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39313143.

The product of its (nonzero) digits is 413343, while the sum is 51.

The square root of 1179393990 is about 34342.3061252444. The cubic root of 1179393990 is about 1056.5408748521.

The spelling of 1179393990 in words is "one billion, one hundred seventy-nine million, three hundred ninety-three thousand, nine hundred ninety".