22739450 has 24 divisors (see below), whose sum is σ = 42459708. Its totient is φ = 9060480.

The previous prime is 22739449. The next prime is 22739459. The reversal of 22739450 is 5493722.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 7349521 + 15389929 = 2711^2 + 3923^2 .

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (22739459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14924 + ... + 16376.

Almost surely, 2^22739450 is an apocalyptic number.

22739450 is a deficient number, since it is larger than the sum of its proper divisors (19720258).

22739450 is a wasteful number, since it uses less digits than its factorization.

22739450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778 (or 1773 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 22739450 is about 4768.5899383361. The cubic root of 22739450 is about 283.3087483474.

The spelling of 22739450 in words is "twenty-two million, seven hundred thirty-nine thousand, four hundred fifty".