28844970 has 64 divisors (see below), whose sum is σ = 86317056. Its totient is φ = 5993280.

The previous prime is 28844929. The next prime is 28845007. The reversal of 28844970 is 7944882.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3934 + ... + 8553.

It is an arithmetic number, because the mean of its divisors is an integer number (1348704).

Almost surely, 2^28844970 is an apocalyptic number.

28844970 is an abundant number, since it is smaller than the sum of its proper divisors (57472086).

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

28844970 is a wasteful number, since it uses less digits than its factorization.

28844970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12515.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 28844970 is about 5370.7513440859. The cubic root of 28844970 is about 306.6832313569.

The spelling of 28844970 in words is "twenty-eight million, eight hundred forty-four thousand, nine hundred seventy".