18750226 has 32 divisors (see below), whose sum is σ = 33361920. Its totient is φ = 7808400.

The previous prime is 18750163. The next prime is 18750229. The reversal of 18750226 is 62205781.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (18750229) 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 15 ways as a sum of consecutive naturals, for example, 12235 + ... + 13681.

It is an arithmetic number, because the mean of its divisors is an integer number (1042560).

Almost surely, 2^18750226 is an apocalyptic number.

18750226 is a deficient number, since it is larger than the sum of its proper divisors (14611694).

18750226 is a wasteful number, since it uses less digits than its factorization.

18750226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 18750226 is about 4330.1531150757. The cubic root of 18750226 is about 265.6657096729.

The spelling of 18750226 in words is "eighteen million, seven hundred fifty thousand, two hundred twenty-six".