30223726 has 16 divisors (see below), whose sum is σ = 49863744. Its totient is φ = 13652064.

The previous prime is 30223723. The next prime is 30223751. The reversal of 30223726 is 62732203.

It is a super-2 number, since 2×30223726² = 1826947226646152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30223726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30223723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11145 + ... + 13588.

It is an arithmetic number, because the mean of its divisors is an integer number (3116484).

Almost surely, 2^30223726 is an apocalyptic number.

30223726 is a deficient number, since it is larger than the sum of its proper divisors (19640018).

30223726 is a wasteful number, since it uses less digits than its factorization.

30223726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24795.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 30223726 is about 5497.6109356701. The cubic root of 30223726 is about 311.4937480871.

Adding to 30223726 its reverse (62732203), we get a palindrome (92955929).

The spelling of 30223726 in words is "thirty million, two hundred twenty-three thousand, seven hundred twenty-six".