22701820 has 12 divisors (see below), whose sum is σ = 47673864. Its totient is φ = 9080720.

The previous prime is 22701797. The next prime is 22701829. The reversal of 22701820 is 2810722.

It is a junction number, because it is equal to n+sod(n) for n = 22701791 and 22701800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22701829) 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, 567526 + ... + 567565.

It is an arithmetic number, because the mean of its divisors is an integer number (3972822).

Almost surely, 2^22701820 is an apocalyptic number.

22701820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22701820 is an abundant number, since it is smaller than the sum of its proper divisors (24972044).

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

22701820 is a wasteful number, since it uses less digits than its factorization.

22701820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135100 (or 1135098 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 22701820 is about 4764.6426938439. The cubic root of 22701820 is about 283.1523858102.

The spelling of 22701820 in words is "twenty-two million, seven hundred one thousand, eight hundred twenty".