22303020 has 48 divisors (see below), whose sum is σ = 62657280. Its totient is φ = 5927616.

The previous prime is 22303019. The next prime is 22303037. The reversal of 22303020 is 2030322.

It is a super-2 number, since 2×22303020² = 994849402240800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22302987 and 22303005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29811 + ... + 30549.

It is an arithmetic number, because the mean of its divisors is an integer number (1305360).

Almost surely, 2^22303020 is an apocalyptic number.

22303020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22303020 is an abundant number, since it is smaller than the sum of its proper divisors (40354260).

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

22303020 is a wasteful number, since it uses less digits than its factorization.

22303020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254 (or 1252 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 22303020 is about 4722.6073307020. The cubic root of 22303020 is about 281.4845470623.

Adding to 22303020 its reverse (2030322), we get a palindrome (24333342).

The spelling of 22303020 in words is "twenty-two million, three hundred three thousand, twenty".