2101392 has 30 divisors (see below), whose sum is σ = 5881382. Its totient is φ = 700416.

The previous prime is 2101391. The next prime is 2101423. The reversal of 2101392 is 2931012.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1354896 + 746496 = 1164^2 + 864^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101391) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7153 + ... + 7440.

2^2101392 is an apocalyptic number.

It is an amenable number.

2101392 is an abundant number, since it is smaller than the sum of its proper divisors (3779990).

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

2101392 is a wasteful number, since it uses less digits than its factorization.

2101392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14607 (or 14598 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 2101392 is about 1449.6178806844. The cubic root of 2101392 is about 128.0862049508.

The spelling of 2101392 in words is "two million, one hundred one thousand, three hundred ninety-two".