20068635 has 8 divisors (see below), whose sum is σ = 32109840. Its totient is φ = 10703264.

The previous prime is 20068603. The next prime is 20068669. The reversal of 20068635 is 53686002.

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

It is a cyclic number.

It is not a de Polignac number, because 20068635 - 2⁵ = 20068603 is a prime.

It is a super-2 number, since 2×20068635² = 805500221526450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668940 + ... + 668969.

It is an arithmetic number, because the mean of its divisors is an integer number (4013730).

Almost surely, 2^20068635 is an apocalyptic number.

20068635 is a deficient number, since it is larger than the sum of its proper divisors (12041205).

20068635 is a wasteful number, since it uses less digits than its factorization.

20068635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337917.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 20068635 is about 4479.8030090619. The cubic root of 20068635 is about 271.7519138965.

The spelling of 20068635 in words is "twenty million, sixty-eight thousand, six hundred thirty-five".