20148936 has 16 divisors (see below), whose sum is σ = 50372400. Its totient is φ = 6716304.

The previous prime is 20148929. The next prime is 20148959. The reversal of 20148936 is 63984102.

It is a junction number, because it is equal to n+sod(n) for n = 20148897 and 20148906.

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, 419746 + ... + 419793.

It is an arithmetic number, because the mean of its divisors is an integer number (3148275).

Almost surely, 2^20148936 is an apocalyptic number.

It is an amenable number.

20148936 is an abundant number, since it is smaller than the sum of its proper divisors (30223464).

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

20148936 is a wasteful number, since it uses less digits than its factorization.

20148936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839548 (or 839544 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 20148936 is about 4488.7566207136. The cubic root of 20148936 is about 272.1138868531.

The spelling of 20148936 in words is "twenty million, one hundred forty-eight thousand, nine hundred thirty-six".