1609992492 has 24 divisors (see below), whose sum is σ = 3757801152. Its totient is φ = 536499600.

The previous prime is 1609992481. The next prime is 1609992509. The reversal of 1609992492 is 2942999061.

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, 24067 + ... + 61637.

It is an arithmetic number, because the mean of its divisors is an integer number (156575048).

Almost surely, 2^1609992492 is an apocalyptic number.

1609992492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1609992492 is an abundant number, since it is smaller than the sum of its proper divisors (2147808660).

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

1609992492 is a wasteful number, since it uses less digits than its factorization.

1609992492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41149 (or 41147 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 1609992492 is about 40124.7117372823. The cubic root of 1609992492 is about 1172.0368959873.

The spelling of 1609992492 in words is "one billion, six hundred nine million, nine hundred ninety-two thousand, four hundred ninety-two".