1912459164 has 48 divisors (see below), whose sum is σ = 5563520256. Its totient is φ = 496742400.

The previous prime is 1912459151. The next prime is 1912459169. The reversal of 1912459164 is 4619542191.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912459169) 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, 1033957 + ... + 1035804.

It is an arithmetic number, because the mean of its divisors is an integer number (115906672).

Almost surely, 2^1912459164 is an apocalyptic number.

1912459164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1912459164 is an abundant number, since it is smaller than the sum of its proper divisors (3651061092).

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

1912459164 is a wasteful number, since it uses less digits than its factorization.

1912459164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069786 (or 2069784 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 1912459164 is about 43731.6723210993. The cubic root of 1912459164 is about 1241.2637056280.

The spelling of 1912459164 in words is "one billion, nine hundred twelve million, four hundred fifty-nine thousand, one hundred sixty-four".