2187264960 has 84 divisors (see below), whose sum is σ = 7523290008. Its totient is φ = 583269888.

The previous prime is 2187264943. The next prime is 2187264967. The reversal of 2187264960 is 694627812.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2187264967) 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, 376854 + ... + 382613.

Almost surely, 2^2187264960 is an apocalyptic number.

2187264960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2187264960 is an abundant number, since it is smaller than the sum of its proper divisors (5336025048).

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

2187264960 is a wasteful number, since it uses less digits than its factorization.

2187264960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759490 (or 759477 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 2187264960 is about 46768.2045838837. The cubic root of 2187264960 is about 1298.0770306998.

The spelling of 2187264960 in words is "two billion, one hundred eighty-seven million, two hundred sixty-four thousand, nine hundred sixty".