20148422 has 16 divisors (see below), whose sum is σ = 35107872. Its totient is φ = 8493120.

The previous prime is 20148413. The next prime is 20148431. The reversal of 20148422 is 22484102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20148413) and next prime (20148431).

It is a congruent number.

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, 10943 + ... + 12650.

It is an arithmetic number, because the mean of its divisors is an integer number (2194242).

Almost surely, 2^20148422 is an apocalyptic number.

20148422 is a deficient number, since it is larger than the sum of its proper divisors (14959450).

20148422 is a wasteful number, since it uses less digits than its factorization.

20148422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23663.

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 20148422 is about 4488.6993661862. The cubic root of 20148422 is about 272.1115729555. Note that the first 3 decimals are identical.

The spelling of 20148422 in words is "twenty million, one hundred forty-eight thousand, four hundred twenty-two".