1129605492 has 24 divisors (see below), whose sum is σ = 2644229952. Its totient is φ = 375323200.

The previous prime is 1129605487. The next prime is 1129605539. The reversal of 1129605492 is 2945069211.

It is a self number, because there is not a number n which added to its sum of digits gives 1129605492.

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, 147609 + ... + 155072.

It is an arithmetic number, because the mean of its divisors is an integer number (110176248).

Almost surely, 2^1129605492 is an apocalyptic number.

1129605492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1129605492 is an abundant number, since it is smaller than the sum of its proper divisors (1514624460).

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

1129605492 is a wasteful number, since it uses less digits than its factorization.

1129605492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302999 (or 302997 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 1129605492 is about 33609.6041630960. The cubic root of 1129605492 is about 1041.4592102730.

The spelling of 1129605492 in words is "one billion, one hundred twenty-nine million, six hundred five thousand, four hundred ninety-two".