22514940 has 144 divisors (see below), whose sum is σ = 79252992. Its totient is φ = 5067648.

The previous prime is 22514939. The next prime is 22514969. The reversal of 22514940 is 4941522.

22514940 = 281² + 282² + ... + 447².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 134737 + ... + 134903.

It is an arithmetic number, because the mean of its divisors is an integer number (550368).

Almost surely, 2^22514940 is an apocalyptic number.

22514940 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 22514940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39626496).

22514940 is an abundant number, since it is smaller than the sum of its proper divisors (56738052).

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

22514940 is a wasteful number, since it uses less digits than its factorization.

22514940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 22514940 is about 4744.9910431949. The cubic root of 22514940 is about 282.3732796318.

The spelling of 22514940 in words is "twenty-two million, five hundred fourteen thousand, nine hundred forty".