1290193932 has 18 divisors (see below), whose sum is σ = 3010742868. Its totient is φ = 430023168.

The previous prime is 1290193921. The next prime is 1290193987. The reversal of 1290193932 is 2393910921.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119244 + ... + 129612.

Almost surely, 2^1290193932 is an apocalyptic number.

1290193932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1290193932 is an abundant number, since it is smaller than the sum of its proper divisors (1720548936).

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

1290193932 is an frugal number, since it uses more digits than its factorization.

1290193932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20745 (or 10374 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 1290193932 is about 35919.2696473634. The cubic root of 1290193932 is about 1088.6417815979.

The spelling of 1290193932 in words is "one billion, two hundred ninety million, one hundred ninety-three thousand, nine hundred thirty-two".