22152072 has 32 divisors (see below), whose sum is σ = 55742400. Its totient is φ = 7335744.

The previous prime is 22152061. The next prime is 22152101. The reversal of 22152072 is 27025122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829 + ... + 6707.

It is an arithmetic number, because the mean of its divisors is an integer number (1741950).

Almost surely, 2^22152072 is an apocalyptic number.

It is an amenable number.

22152072 is an abundant number, since it is smaller than the sum of its proper divisors (33590328).

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

22152072 is a wasteful number, since it uses less digits than its factorization.

22152072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6045 (or 6041 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 22152072 is about 4706.5987719371. The cubic root of 22152072 is about 280.8480749824.

Adding to 22152072 its reverse (27025122), we get a palindrome (49177194).

The spelling of 22152072 in words is "twenty-two million, one hundred fifty-two thousand, seventy-two".