2187089372 has 48 divisors (see below), whose sum is σ = 4396381920. Its totient is φ = 943060992.

The previous prime is 2187089371. The next prime is 2187089381. The reversal of 2187089372 is 2739807812.

It is a super-2 number, since 2×2187089372² = 9566719842230708768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2187089371) 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, 112079 + ... + 130137.

It is an arithmetic number, because the mean of its divisors is an integer number (91591290).

Almost surely, 2^2187089372 is an apocalyptic number.

It is an amenable number.

2187089372 is an abundant number, since it is smaller than the sum of its proper divisors (2209292548).

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

2187089372 is a wasteful number, since it uses less digits than its factorization.

2187089372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18230 (or 18228 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 2187089372 is about 46766.3273306767. The cubic root of 2187089372 is about 1298.0422943429.

The spelling of 2187089372 in words is "two billion, one hundred eighty-seven million, eighty-nine thousand, three hundred seventy-two".