2881432 has 16 divisors (see below), whose sum is σ = 5720760. Its totient is φ = 1355904.

The previous prime is 2881427. The next prime is 2881433. The reversal of 2881432 is 2341882.

It is a self number, because there is not a number n which added to its sum of digits gives 2881432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2881433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10458 + ... + 10729.

2^2881432 is an apocalyptic number.

It is an amenable number.

2881432 is a deficient number, since it is larger than the sum of its proper divisors (2839328).

2881432 is a wasteful number, since it uses less digits than its factorization.

2881432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21210 (or 21206 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 2881432 is about 1697.4781294615. The cubic root of 2881432 is about 142.2993091576.

The spelling of 2881432 in words is "two million, eight hundred eighty-one thousand, four hundred thirty-two".