2130972 has 24 divisors (see below), whose sum is σ = 4996992. Its totient is φ = 706800.

The previous prime is 2130959. The next prime is 2130979. The reversal of 2130972 is 2790312.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130979) 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, 3447 + ... + 4017.

It is an arithmetic number, because the mean of its divisors is an integer number (208208).

2^2130972 is an apocalyptic number.

It is an amenable number.

2130972 is an abundant number, since it is smaller than the sum of its proper divisors (2866020).

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

2130972 is a wasteful number, since it uses less digits than its factorization.

2130972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 2130972 is about 1459.7849156639. The cubic root of 2130972 is about 128.6844036984.

The spelling of 2130972 in words is "two million, one hundred thirty thousand, nine hundred seventy-two".