22015962 has 40 divisors (see below), whose sum is σ = 50679156. Its totient is φ = 7138368.

The previous prime is 22015943. The next prime is 22016009. The reversal of 22015962 is 26951022.

It can be written as a sum of positive squares in 2 ways, for example, as 21986721 + 29241 = 4689^2 + 171^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4158 + ... + 7830.

Almost surely, 2^22015962 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22015962, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25339578).

22015962 is an abundant number, since it is smaller than the sum of its proper divisors (28663194).

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

22015962 is a wasteful number, since it uses less digits than its factorization.

22015962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3724 (or 3715 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 22015962 is about 4692.1170062137. The cubic root of 22015962 is about 280.2716835795.

Adding to 22015962 its reverse (26951022), we get a palindrome (48966984).

The spelling of 22015962 in words is "twenty-two million, fifteen thousand, nine hundred sixty-two".