22420410 has 32 divisors (see below), whose sum is σ = 54957312. Its totient is φ = 5851200.

The previous prime is 22420403. The next prime is 22420421. The reversal of 22420410 is 1402422.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22420410.

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, 6541 + ... + 9360.

It is an arithmetic number, because the mean of its divisors is an integer number (1717416).

Almost surely, 2^22420410 is an apocalyptic number.

22420410 is an abundant number, since it is smaller than the sum of its proper divisors (32536902).

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

22420410 is a wasteful number, since it uses less digits than its factorization.

22420410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15958.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 22420410 is about 4735.0195353346. The cubic root of 22420410 is about 281.9775395823.

Adding to 22420410 its reverse (1402422), we get a palindrome (23822832).

The spelling of 22420410 in words is "twenty-two million, four hundred twenty thousand, four hundred ten".