22820450 has 12 divisors (see below), whose sum is σ = 42446130. Its totient is φ = 9128160.

The previous prime is 22820449. The next prime is 22820459. The reversal of 22820450 is 5402822.

It can be written as a sum of positive squares in 3 ways, for example, as 22061809 + 758641 = 4697^2 + 871^2 .

It is not an unprimeable number, because it can be changed into a prime (22820459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 228155 + ... + 228254.

Almost surely, 2^22820450 is an apocalyptic number.

22820450 is a deficient number, since it is larger than the sum of its proper divisors (19625680).

22820450 is a wasteful number, since it uses less digits than its factorization.

22820450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456421 (or 456416 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 22820450 is about 4777.0754651774. The cubic root of 22820450 is about 283.6447402730.

The spelling of 22820450 in words is "twenty-two million, eight hundred twenty thousand, four hundred fifty".