28941620 has 24 divisors (see below), whose sum is σ = 60958464. Its totient is φ = 11542176.

The previous prime is 28941593. The next prime is 28941691. The reversal of 28941620 is 2614982.

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, 5369 + ... + 9311.

It is an arithmetic number, because the mean of its divisors is an integer number (2539936).

Almost surely, 2^28941620 is an apocalyptic number.

28941620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28941620 is an abundant number, since it is smaller than the sum of its proper divisors (32016844).

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

28941620 is a wasteful number, since it uses less digits than its factorization.

28941620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319 (or 4317 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 28941620 is about 5379.7416294837. The cubic root of 28941620 is about 307.0253810179.

The spelling of 28941620 in words is "twenty-eight million, nine hundred forty-one thousand, six hundred twenty".