1609317942 has 32 divisors (see below), whose sum is σ = 3329040384. Its totient is φ = 518107200.

The previous prime is 1609317907. The next prime is 1609317947. The reversal of 1609317942 is 2497139061.

It is a junction number, because it is equal to n+sod(n) for n = 1609317894 and 1609317903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1609317947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88603 + ... + 105209.

It is an arithmetic number, because the mean of its divisors is an integer number (104032512).

Almost surely, 2^1609317942 is an apocalyptic number.

1609317942 is an abundant number, since it is smaller than the sum of its proper divisors (1719722442).

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

1609317942 is a wasteful number, since it uses less digits than its factorization.

1609317942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17164.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 1609317942 is about 40116.3051887883. The cubic root of 1609317942 is about 1171.8731875784.

The spelling of 1609317942 in words is "one billion, six hundred nine million, three hundred seventeen thousand, nine hundred forty-two".