22380528 has 20 divisors (see below), whose sum is σ = 57816488. Its totient is φ = 7460160.

The previous prime is 22380521. The next prime is 22380569. The reversal of 22380528 is 82508322.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 22380495 and 22380504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22380521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233083 + ... + 233178.

Almost surely, 2^22380528 is an apocalyptic number.

It is an amenable number.

22380528 is an abundant number, since it is smaller than the sum of its proper divisors (35435960).

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

22380528 is a wasteful number, since it uses less digits than its factorization.

22380528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466272 (or 466266 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 22380528 is about 4730.8062737762. The cubic root of 22380528 is about 281.8102440548.

The spelling of 22380528 in words is "twenty-two million, three hundred eighty thousand, five hundred twenty-eight".