2231892 has 72 divisors (see below), whose sum is σ = 6420960. Its totient is φ = 648000.

The previous prime is 2231891. The next prime is 2231909. The reversal of 2231892 is 2981322.

It is a happy number.

It is a super-3 number, since 3×2231892³ = 33353451405374652864, which contains 333 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (1728) is a multiple of the sum of its prime divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8767 + ... + 9017.

It is an arithmetic number, because the mean of its divisors is an integer number (89180).

2^2231892 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3210480).

2231892 is an abundant number, since it is smaller than the sum of its proper divisors (4189068).

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

2231892 is a wasteful number, since it uses less digits than its factorization.

2231892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 288 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 2231892 is about 1493.9518064516. The cubic root of 2231892 is about 130.6845936577.

The spelling of 2231892 in words is "two million, two hundred thirty-one thousand, eight hundred ninety-two".