20149022 has 8 divisors (see below), whose sum is σ = 30637776. Its totient is φ = 9936432.

The previous prime is 20149021. The next prime is 20149027. The reversal of 20149022 is 22094102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20148985 and 20149003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20149021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68858 + ... + 69149.

It is an arithmetic number, because the mean of its divisors is an integer number (3829722).

Almost surely, 2^20149022 is an apocalyptic number.

20149022 is a deficient number, since it is larger than the sum of its proper divisors (10488754).

20149022 is a wasteful number, since it uses less digits than its factorization.

20149022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138082.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 20149022 is about 4488.7662001935. The cubic root of 20149022 is about 272.1142739995.

The spelling of 20149022 in words is "twenty million, one hundred forty-nine thousand, twenty-two".