28529190 has 24 divisors (see below), whose sum is σ = 74176128. Its totient is φ = 7607760.

The previous prime is 28529161. The next prime is 28529197. The reversal of 28529190 is 9192582.

28529190 is a `hidden beast` number, since 285 + 291 + 90 = 666.

It is a super-2 number, since 2×28529190² = 1627829364112200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28529197) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158406 + ... + 158585.

It is an arithmetic number, because the mean of its divisors is an integer number (3090672).

Almost surely, 2^28529190 is an apocalyptic number.

28529190 is an abundant number, since it is smaller than the sum of its proper divisors (45646938).

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

28529190 is a wasteful number, since it uses less digits than its factorization.

28529190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317004 (or 317001 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 28529190 is about 5341.2723203372. The cubic root of 28529190 is about 305.5599852924.

The spelling of 28529190 in words is "twenty-eight million, five hundred twenty-nine thousand, one hundred ninety".