28541790 has 48 divisors (see below), whose sum is σ = 74522448. Its totient is φ = 7579008.

The previous prime is 28541783. The next prime is 28541833. The reversal of 28541790 is 9714582.

28541790 is a `hidden beast` number, since 28 + 541 + 7 + 90 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27114 + ... + 28146.

It is an arithmetic number, because the mean of its divisors is an integer number (1552551).

Almost surely, 2^28541790 is an apocalyptic number.

28541790 is an abundant number, since it is smaller than the sum of its proper divisors (45980658).

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

28541790 is a wasteful number, since it uses less digits than its factorization.

28541790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353 (or 1350 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 28541790 is about 5342.4516843861. The cubic root of 28541790 is about 305.6049624913.

The spelling of 28541790 in words is "twenty-eight million, five hundred forty-one thousand, seven hundred ninety".