2167489920 has 64 divisors (see below), whose sum is σ = 6908880240. Its totient is φ = 577996800.

The previous prime is 2167489913. The next prime is 2167489927. The reversal of 2167489920 is 299847612.

It is an interprime number because it is at equal distance from previous prime (2167489913) and next prime (2167489927).

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 2167489920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2167489927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562531 + ... + 566370.

Almost surely, 2^2167489920 is an apocalyptic number.

2167489920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2167489920 is an abundant number, since it is smaller than the sum of its proper divisors (4741390320).

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

2167489920 is a wasteful number, since it uses less digits than its factorization.

2167489920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128923 (or 1128911 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 2167489920 is about 46556.3091320607. The cubic root of 2167489920 is about 1294.1532147476.

The spelling of 2167489920 in words is "two billion, one hundred sixty-seven million, four hundred eighty-nine thousand, nine hundred twenty".