22412340 has 36 divisors (see below), whose sum is σ = 67984644. Its totient is φ = 5976576.

The previous prime is 22412339. The next prime is 22412359. The reversal of 22412340 is 4321422.

It can be written as a sum of positive squares in 2 ways, for example, as 2377764 + 20034576 = 1542^2 + 4476^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62077 + ... + 62436.

Almost surely, 2^22412340 is an apocalyptic number.

22412340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22412340 is an abundant number, since it is smaller than the sum of its proper divisors (45572304).

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

22412340 is a wasteful number, since it uses less digits than its factorization.

22412340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124528 (or 124523 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 22412340 is about 4734.1672974241. The cubic root of 22412340 is about 281.9437038671.

Adding to 22412340 its reverse (4321422), we get a palindrome (26733762).

The spelling of 22412340 in words is "twenty-two million, four hundred twelve thousand, three hundred forty".