2891232 has 36 divisors (see below), whose sum is σ = 8222760. Its totient is φ = 963648.

The previous prime is 2891219. The next prime is 2891233. The reversal of 2891232 is 2321982.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 2891196 and 2891205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2891233) 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, 4732 + ... + 5307.

It is an arithmetic number, because the mean of its divisors is an integer number (228410).

2^2891232 is an apocalyptic number.

It is an amenable number.

2891232 is an abundant number, since it is smaller than the sum of its proper divisors (5331528).

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

2891232 is a wasteful number, since it uses less digits than its factorization.

2891232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10055 (or 10044 counting only the distinct ones).

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

The square root of 2891232 is about 1700.3623143319. The cubic root of 2891232 is about 142.4604507051.

It can be divided in two parts, 289 and 1232, that added together give a square (1521 = 39²).

The spelling of 2891232 in words is "two million, eight hundred ninety-one thousand, two hundred thirty-two".