28029952 has 44 divisors (see below), whose sum is σ = 57905536. Its totient is φ = 13547520.

The previous prime is 28029943. The next prime is 28029961. The reversal of 28029952 is 25992082.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28029943) and next prime (28029961).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31303 + ... + 32185.

Almost surely, 2^28029952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28029952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28952768).

28029952 is an abundant number, since it is smaller than the sum of its proper divisors (29875584).

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

28029952 is an equidigital number, since it uses as much as digits as its factorization.

28029952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 916 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 28029952 is about 5294.3320636318. The cubic root of 28029952 is about 303.7671346891.

It can be divided in two parts, 280 and 29952, that multiplied together give a triangular number (8386560 = T₄₀₉₅).

The spelling of 28029952 in words is "twenty-eight million, twenty-nine thousand, nine hundred fifty-two".