28141944 has 32 divisors (see below), whose sum is σ = 70899840. Its totient is φ = 9308000.

The previous prime is 28141937. The next prime is 28141961. The reversal of 28141944 is 44914182.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1332 + ... + 7619.

It is an arithmetic number, because the mean of its divisors is an integer number (2215620).

Almost surely, 2^28141944 is an apocalyptic number.

28141944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28141944 is an abundant number, since it is smaller than the sum of its proper divisors (42757896).

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

28141944 is a wasteful number, since it uses less digits than its factorization.

28141944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9091 (or 9087 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 28141944 is about 5304.8981140075. The cubic root of 28141944 is about 304.1711582331.

The spelling of 28141944 in words is "twenty-eight million, one hundred forty-one thousand, nine hundred forty-four".