20366630 has 8 divisors (see below), whose sum is σ = 36659952. Its totient is φ = 8146648.

The previous prime is 20366611. The next prime is 20366639. The reversal of 20366630 is 3666302.

It is a happy number.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20366630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20366639) 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, 1018322 + ... + 1018341.

It is an arithmetic number, because the mean of its divisors is an integer number (4582494).

Almost surely, 2^20366630 is an apocalyptic number.

20366630 is a deficient number, since it is larger than the sum of its proper divisors (16293322).

20366630 is a wasteful number, since it uses less digits than its factorization.

20366630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036670.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 20366630 is about 4512.9402832300. The cubic root of 20366630 is about 273.0903733679.

The spelling of 20366630 in words is "twenty million, three hundred sixty-six thousand, six hundred thirty".