22721514 has 8 divisors (see below), whose sum is σ = 45443040. Its totient is φ = 7573836.

The previous prime is 22721507. The next prime is 22721563. The reversal of 22721514 is 41512722.

It is a sphenic number, since it is the product of 3 distinct primes.

22721514 is an admirable number.

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, 1893454 + ... + 1893465.

It is an arithmetic number, because the mean of its divisors is an integer number (5680380).

Almost surely, 2^22721514 is an apocalyptic number.

22721514 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22721514 is a wasteful number, since it uses less digits than its factorization.

22721514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786924.

The product of its digits is 1120, while the sum is 24.

The square root of 22721514 is about 4766.7089275516. The cubic root of 22721514 is about 283.2342410879.

The spelling of 22721514 in words is "twenty-two million, seven hundred twenty-one thousand, five hundred fourteen".