2872428 has 24 divisors (see below), whose sum is σ = 7218288. Its totient is φ = 883776.

The previous prime is 2872427. The next prime is 2872433. The reversal of 2872428 is 8242782.

2872428 = T₄₅₇ + T₄₅₈ + ... + T₄₈₂.

2872428 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2872423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9051 + ... + 9362.

It is an arithmetic number, because the mean of its divisors is an integer number (300762).

2^2872428 is an apocalyptic number.

It is an amenable number.

2872428 is an abundant number, since it is smaller than the sum of its proper divisors (4345860).

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

2872428 is a wasteful number, since it uses less digits than its factorization.

2872428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18433 (or 18431 counting only the distinct ones).

The product of its digits is 14336, while the sum is 33.

The square root of 2872428 is about 1694.8238846559. The cubic root of 2872428 is about 142.1509338729.

The spelling of 2872428 in words is "two million, eight hundred seventy-two thousand, four hundred twenty-eight".