22334240 has 24 divisors (see below), whose sum is σ = 52765020. Its totient is φ = 8933632.

The previous prime is 22334239. The next prime is 22334251. The reversal of 22334240 is 4243322.

It can be written as a sum of positive squares in 2 ways, for example, as 21939856 + 394384 = 4684^2 + 628^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69635 + ... + 69954.

Almost surely, 2^22334240 is an apocalyptic number.

22334240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22334240 is an abundant number, since it is smaller than the sum of its proper divisors (30430780).

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

22334240 is a wasteful number, since it uses less digits than its factorization.

22334240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139604 (or 139596 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 22334240 is about 4725.9115522828. The cubic root of 22334240 is about 281.6158274937.

Adding to 22334240 its reverse (4243322), we get a palindrome (26577562).

The spelling of 22334240 in words is "twenty-two million, three hundred thirty-four thousand, two hundred forty".