22453020 has 36 divisors (see below), whose sum is σ = 68108040. Its totient is φ = 5987424.

The previous prime is 22452979. The next prime is 22453031. The reversal of 22453020 is 2035422.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22452984 and 22453002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62190 + ... + 62549.

It is an arithmetic number, because the mean of its divisors is an integer number (1891890).

Almost surely, 2^22453020 is an apocalyptic number.

22453020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22453020 is an abundant number, since it is smaller than the sum of its proper divisors (45655020).

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

22453020 is a wasteful number, since it uses less digits than its factorization.

22453020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124754 (or 124749 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 22453020 is about 4738.4617757243. The cubic root of 22453020 is about 282.1141834267.

Adding to 22453020 its reverse (2035422), we get a palindrome (24488442).

The spelling of 22453020 in words is "twenty-two million, four hundred fifty-three thousand, twenty".