18630622 has 8 divisors (see below), whose sum is σ = 28328976. Its totient is φ = 9187632.

The previous prime is 18630593. The next prime is 18630629. The reversal of 18630622 is 22603681.

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

It is a super-2 number, since 2×18630622² = 694200152213768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18630629) 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, 63658 + ... + 63949.

It is an arithmetic number, because the mean of its divisors is an integer number (3541122).

Almost surely, 2^18630622 is an apocalyptic number.

18630622 is a deficient number, since it is larger than the sum of its proper divisors (9698354).

18630622 is a wasteful number, since it uses less digits than its factorization.

18630622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127682.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 18630622 is about 4316.3204236942. The cubic root of 18630622 is about 265.0996279011.

The spelling of 18630622 in words is "eighteen million, six hundred thirty thousand, six hundred twenty-two".