22734040 has 64 divisors (see below), whose sum is σ = 59688000. Its totient is φ = 7789824.

The previous prime is 22734037. The next prime is 22734053. The reversal of 22734040 is 4043722.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12892 + ... + 14548.

It is an arithmetic number, because the mean of its divisors is an integer number (932625).

Almost surely, 2^22734040 is an apocalyptic number.

22734040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22734040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29844000).

22734040 is an abundant number, since it is smaller than the sum of its proper divisors (36953960).

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

22734040 is a wasteful number, since it uses less digits than its factorization.

22734040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689 (or 1671 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 22734040 is about 4768.0226509529. The cubic root of 22734040 is about 283.2862789987.

Adding to 22734040 its reverse (4043722), we get a palindrome (26777762).

The spelling of 22734040 in words is "twenty-two million, seven hundred thirty-four thousand, forty".