22232040 has 32 divisors (see below), whose sum is σ = 66696480. Its totient is φ = 5928512.

The previous prime is 22232029. The next prime is 22232051. The reversal of 22232040 is 4023222.

It is an interprime number because it is at equal distance from previous prime (22232029) and next prime (22232051).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 92514 + ... + 92753.

It is an arithmetic number, because the mean of its divisors is an integer number (2084265).

Almost surely, 2^22232040 is an apocalyptic number.

22232040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22232040 is an abundant number, since it is smaller than the sum of its proper divisors (44464440).

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

22232040 is a wasteful number, since it uses less digits than its factorization.

22232040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185281 (or 185277 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 22232040 is about 4715.0864255070. The cubic root of 22232040 is about 281.1856188438.

Adding to 22232040 its reverse (4023222), we get a palindrome (26255262).

The spelling of 22232040 in words is "twenty-two million, two hundred thirty-two thousand, forty".