2840432 has 30 divisors (see below), whose sum is σ = 6403608. Its totient is φ = 1216992.

The previous prime is 2840419. The next prime is 2840447. The reversal of 2840432 is 2340482.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2840398 and 2840407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1028 + ... + 2595.

2^2840432 is an apocalyptic number.

It is an amenable number.

2840432 is an abundant number, since it is smaller than the sum of its proper divisors (3563176).

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

2840432 is a wasteful number, since it uses less digits than its factorization.

2840432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3645 (or 3632 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2840432 is about 1685.3581221806. The cubic root of 2840432 is about 141.6211550846.

It can be divided in two parts, 28 and 40432, that multiplied together give a square (1132096 = 1064²).

The spelling of 2840432 in words is "two million, eight hundred forty thousand, four hundred thirty-two".