28650048 has 56 divisors (see below), whose sum is σ = 86636352. Its totient is φ = 8185344.

The previous prime is 28650047. The next prime is 28650067. The reversal of 28650048 is 84005682.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (28650047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9315 + ... + 12002.

Almost surely, 2^28650048 is an apocalyptic number.

28650048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28650048 is an abundant number, since it is smaller than the sum of its proper divisors (57986304).

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

28650048 is a wasteful number, since it uses less digits than its factorization.

28650048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21339 (or 21329 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 28650048 is about 5352.5739602550. The cubic root of 28650048 is about 305.9908579438.

The spelling of 28650048 in words is "twenty-eight million, six hundred fifty thousand, forty-eight".