1609940862 has 24 divisors (see below), whose sum is σ = 3490270056. Its totient is φ = 536329296.

The previous prime is 1609940837. The next prime is 1609940863. The reversal of 1609940862 is 2680499061.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1609940863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5848 + ... + 57044.

It is an arithmetic number, because the mean of its divisors is an integer number (145427919).

Almost surely, 2^1609940862 is an apocalyptic number.

1609940862 is an abundant number, since it is smaller than the sum of its proper divisors (1880329194).

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

1609940862 is a wasteful number, since it uses less digits than its factorization.

1609940862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52952 (or 52949 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 1609940862 is about 40124.0683630162. The cubic root of 1609940862 is about 1172.0243673757.

The spelling of 1609940862 in words is "one billion, six hundred nine million, nine hundred forty thousand, eight hundred sixty-two".