28526904 has 160 divisors (see below), whose sum is σ = 96412800. Its totient is φ = 7698240.

The previous prime is 28526899. The next prime is 28526909. The reversal of 28526904 is 40962582.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28526899) and next prime (28526909).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28526909) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 86019 + ... + 86349.

It is an arithmetic number, because the mean of its divisors is an integer number (602580).

Almost surely, 2^28526904 is an apocalyptic number.

28526904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28526904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48206400).

28526904 is an abundant number, since it is smaller than the sum of its proper divisors (67885896).

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

28526904 is a wasteful number, since it uses less digits than its factorization.

28526904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 28526904 is about 5341.0583220931. The cubic root of 28526904 is about 305.5518237242.

The spelling of 28526904 in words is "twenty-eight million, five hundred twenty-six thousand, nine hundred four".