1912442664 has 64 divisors (see below), whose sum is σ = 5235194880. Its totient is φ = 577368000.

The previous prime is 1912442657. The next prime is 1912442677. The reversal of 1912442664 is 4662442191.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58179 + ... + 84909.

It is an arithmetic number, because the mean of its divisors is an integer number (81799920).

Almost surely, 2^1912442664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1912442664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2617597440).

1912442664 is an abundant number, since it is smaller than the sum of its proper divisors (3322752216).

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

1912442664 is a wasteful number, since it uses less digits than its factorization.

1912442664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27022 (or 27018 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 1912442664 is about 43731.4836702347. The cubic root of 1912442664 is about 1241.2601358942.

The spelling of 1912442664 in words is "one billion, nine hundred twelve million, four hundred forty-two thousand, six hundred sixty-four".