22415274 has 48 divisors (see below), whose sum is σ = 56871360. Its totient is φ = 6246720.

The previous prime is 22415249. The next prime is 22415297. The reversal of 22415274 is 47251422.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2997 + ... + 7335.

It is an arithmetic number, because the mean of its divisors is an integer number (1184820).

Almost surely, 2^22415274 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22415274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28435680).

22415274 is an abundant number, since it is smaller than the sum of its proper divisors (34456086).

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

22415274 is a wasteful number, since it uses less digits than its factorization.

22415274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4395 (or 4392 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 22415274 is about 4734.4771622641. The cubic root of 22415274 is about 281.9560064161.

Adding to 22415274 its reverse (47251422), we get a palindrome (69666696).

The spelling of 22415274 in words is "twenty-two million, four hundred fifteen thousand, two hundred seventy-four".