22729748 has 12 divisors (see below), whose sum is σ = 42117012. Its totient is φ = 10696320.

The previous prime is 22729741. The next prime is 22729753. The reversal of 22729748 is 84792722.

It can be written as a sum of positive squares in 2 ways, for example, as 14273284 + 8456464 = 3778^2 + 2908^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22729741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167063 + ... + 167198.

It is an arithmetic number, because the mean of its divisors is an integer number (3509751).

Almost surely, 2^22729748 is an apocalyptic number.

It is an amenable number.

22729748 is a deficient number, since it is larger than the sum of its proper divisors (19387264).

22729748 is a wasteful number, since it uses less digits than its factorization.

22729748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334282 (or 334280 counting only the distinct ones).

The product of its digits is 112896, while the sum is 41.

The square root of 22729748 is about 4767.5725479535. The cubic root of 22729748 is about 283.2684505026.

The spelling of 22729748 in words is "twenty-two million, seven hundred twenty-nine thousand, seven hundred forty-eight".