22867820 has 12 divisors (see below), whose sum is σ = 48022464. Its totient is φ = 9147120.

The previous prime is 22867807. The next prime is 22867829. The reversal of 22867820 is 2876822.

It is not an unprimeable number, because it can be changed into a prime (22867829) 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, 571676 + ... + 571715.

It is an arithmetic number, because the mean of its divisors is an integer number (4001872).

Almost surely, 2^22867820 is an apocalyptic number.

22867820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22867820 is an abundant number, since it is smaller than the sum of its proper divisors (25154644).

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

22867820 is a wasteful number, since it uses less digits than its factorization.

22867820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143400 (or 1143398 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 22867820 is about 4782.0309492934. The cubic root of 22867820 is about 283.8408650236.

The spelling of 22867820 in words is "twenty-two million, eight hundred sixty-seven thousand, eight hundred twenty".