18970226 has 8 divisors (see below), whose sum is σ = 31042224. Its totient is φ = 8622820.

The previous prime is 18970223. The next prime is 18970229. The reversal of 18970226 is 62207981.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18970223) and next prime (18970229).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18970223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431120 + ... + 431163.

It is an arithmetic number, because the mean of its divisors is an integer number (3880278).

Almost surely, 2^18970226 is an apocalyptic number.

18970226 is a deficient number, since it is larger than the sum of its proper divisors (12071998).

18970226 is a wasteful number, since it uses less digits than its factorization.

18970226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862296.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 18970226 is about 4355.4822924677. The cubic root of 18970226 is about 266.7007078071.

The spelling of 18970226 in words is "eighteen million, nine hundred seventy thousand, two hundred twenty-six".