22250406 has 32 divisors (see below), whose sum is σ = 47520000. Its totient is φ = 6924960.

The previous prime is 22250383. The next prime is 22250419. The reversal of 22250406 is 60405222.

It is a congruent number.

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, 6720 + ... + 9468.

It is an arithmetic number, because the mean of its divisors is an integer number (1485000).

Almost surely, 2^22250406 is an apocalyptic number.

22250406 is an abundant number, since it is smaller than the sum of its proper divisors (25269594).

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

22250406 is a wasteful number, since it uses less digits than its factorization.

22250406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 22250406 is about 4717.0336017459. The cubic root of 22250406 is about 281.2630271497.

Adding to 22250406 its reverse (60405222), we get a palindrome (82655628).

The spelling of 22250406 in words is "twenty-two million, two hundred fifty thousand, four hundred six".