22260451 has 4 divisors (see below), whose sum is σ = 22410000. Its totient is φ = 22110904.

The previous prime is 22260443. The next prime is 22260503. The reversal of 22260451 is 15406222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22260451 - 2³ = 22260443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22260431) 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, 74551 + ... + 74848.

It is an arithmetic number, because the mean of its divisors is an integer number (5602500).

Almost surely, 2^22260451 is an apocalyptic number.

22260451 is a deficient number, since it is larger than the sum of its proper divisors (149549).

22260451 is a wasteful number, since it uses less digits than its factorization.

22260451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149548.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 22260451 is about 4718.0982397572. The cubic root of 22260451 is about 281.3053464082.

Adding to 22260451 its reverse (15406222), we get a palindrome (37666673).

The spelling of 22260451 in words is "twenty-two million, two hundred sixty thousand, four hundred fifty-one".