28622652 has 48 divisors (see below), whose sum is σ = 69582240. Its totient is φ = 9146368.

The previous prime is 28622651. The next prime is 28622653. The reversal of 28622652 is 25622682.

It is an interprime number because it is at equal distance from previous prime (28622651) and next prime (28622653).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28622651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80908 + ... + 81260.

It is an arithmetic number, because the mean of its divisors is an integer number (1449630).

Almost surely, 2^28622652 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 28622652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34791120).

28622652 is an abundant number, since it is smaller than the sum of its proper divisors (40959588).

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

28622652 is a wasteful number, since it uses less digits than its factorization.

28622652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 620 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 28622652 is about 5350.0142055886. The cubic root of 28622652 is about 305.8932944195.

The spelling of 28622652 in words is "twenty-eight million, six hundred twenty-two thousand, six hundred fifty-two".