20422854 has 20 divisors (see below), whose sum is σ = 45762684. Its totient is φ = 6807564.

The previous prime is 20422847. The next prime is 20422859. The reversal of 20422854 is 45822402.

It is a happy number.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20422859) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 62872 + ... + 63195.

Almost surely, 2^20422854 is an apocalyptic number.

20422854 is an abundant number, since it is smaller than the sum of its proper divisors (25339830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20422854 is a wasteful number, since it uses less digits than its factorization.

20422854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126081 (or 126072 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 20422854 is about 4519.1651883949. The cubic root of 20422854 is about 273.3414397093.

The spelling of 20422854 in words is "twenty million, four hundred twenty-two thousand, eight hundred fifty-four".