22750730 has 16 divisors (see below), whose sum is σ = 41023584. Its totient is φ = 9084240.

The previous prime is 22750729. The next prime is 22750747. The reversal of 22750730 is 3705722.

It is a self number, because there is not a number n which added to its sum of digits gives 22750730.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5165 + ... + 8495.

It is an arithmetic number, because the mean of its divisors is an integer number (2563974).

Almost surely, 2^22750730 is an apocalyptic number.

22750730 is a deficient number, since it is larger than the sum of its proper divisors (18272854).

22750730 is a wasteful number, since it uses less digits than its factorization.

22750730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4021.

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 22750730 is about 4769.7725312639. The cubic root of 22750730 is about 283.3555861031.

The spelling of 22750730 in words is "twenty-two million, seven hundred fifty thousand, seven hundred thirty".