20828088 has 48 divisors (see below), whose sum is σ = 56623320. Its totient is φ = 6916416.

The previous prime is 20828057. The next prime is 20828107. The reversal of 20828088 is 88082802.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31570 + ... + 32222.

Almost surely, 2^20828088 is an apocalyptic number.

It is an amenable number.

20828088 is an abundant number, since it is smaller than the sum of its proper divisors (35795232).

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

20828088 is a wasteful number, since it uses less digits than its factorization.

20828088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The square root of 20828088 is about 4563.7800122267. The cubic root of 20828088 is about 275.1375091908.

The spelling of 20828088 in words is "twenty million, eight hundred twenty-eight thousand, eighty-eight".