20700048 has 20 divisors (see below), whose sum is σ = 53475248. Its totient is φ = 6900000.

The previous prime is 20700041. The next prime is 20700049. The reversal of 20700048 is 84000702.

It is a happy number.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20699997 and 20700033.

It is not an unprimeable number, because it can be changed into a prime (20700041) 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, 215578 + ... + 215673.

Almost surely, 2^20700048 is an apocalyptic number.

It is an amenable number.

20700048 is an abundant number, since it is smaller than the sum of its proper divisors (32775200).

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

20700048 is a wasteful number, since it uses less digits than its factorization.

20700048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431262 (or 431256 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 20700048 is about 4549.7305414717. The cubic root of 20700048 is about 274.5725502574.

The spelling of 20700048 in words is "twenty million, seven hundred thousand, forty-eight".