1190270920 has 32 divisors (see below), whose sum is σ = 2683886400. Its totient is φ = 475081408.

The previous prime is 1190270899. The next prime is 1190270927. The reversal of 1190270920 is 290720911.

It is not an unprimeable number, because it can be changed into a prime (1190270927) 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, 13180 + ... + 50539.

It is an arithmetic number, because the mean of its divisors is an integer number (83871450).

Almost surely, 2^1190270920 is an apocalyptic number.

1190270920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1190270920 is an abundant number, since it is smaller than the sum of its proper divisors (1493615480).

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

1190270920 is a wasteful number, since it uses less digits than its factorization.

1190270920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64197 (or 64193 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 1190270920 is about 34500.3031870736. The cubic root of 1190270920 is about 1059.7789143752.

The spelling of 1190270920 in words is "one billion, one hundred ninety million, two hundred seventy thousand, nine hundred twenty".