20642414 has 8 divisors (see below), whose sum is σ = 33345480. Its totient is φ = 9527256.

The previous prime is 20642371. The next prime is 20642423. The reversal of 20642414 is 41424602.

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

It is a super-2 number, since 2×20642414² = 852218511494792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20642414.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396944 + ... + 396995.

It is an arithmetic number, because the mean of its divisors is an integer number (4168185).

Almost surely, 2^20642414 is an apocalyptic number.

20642414 is a deficient number, since it is larger than the sum of its proper divisors (12703066).

20642414 is a wasteful number, since it uses less digits than its factorization.

20642414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793954.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 20642414 is about 4543.3923449335. The cubic root of 20642414 is about 274.3174876645.

The spelling of 20642414 in words is "twenty million, six hundred forty-two thousand, four hundred fourteen".