20842954 has 8 divisors (see below), whose sum is σ = 34106688. Its totient is φ = 9474060.

The previous prime is 20842937. The next prime is 20842961. The reversal of 20842954 is 45924802.

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

It is a super-2 number, since 2×20842954² = 868857462892232, which contains 22 as substring.

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, 473682 + ... + 473725.

It is an arithmetic number, because the mean of its divisors is an integer number (4263336).

Almost surely, 2^20842954 is an apocalyptic number.

20842954 is a deficient number, since it is larger than the sum of its proper divisors (13263734).

20842954 is a wasteful number, since it uses less digits than its factorization.

20842954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947420.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 20842954 is about 4565.4084154651. The cubic root of 20842954 is about 275.2029532116.

The spelling of 20842954 in words is "twenty million, eight hundred forty-two thousand, nine hundred fifty-four".