20191048 has 16 divisors (see below), whose sum is σ = 38881980. Its totient is φ = 9822528.

The previous prime is 20191043. The next prime is 20191049. The reversal of 20191048 is 84019102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19731364 + 459684 = 4442^2 + 678^2 .

It is not an unprimeable number, because it can be changed into a prime (20191043) 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, 33811 + ... + 34402.

Almost surely, 2^20191048 is an apocalyptic number.

It is an amenable number.

20191048 is a deficient number, since it is larger than the sum of its proper divisors (18690932).

20191048 is a wasteful number, since it uses less digits than its factorization.

20191048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68256 (or 68252 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 20191048 is about 4493.4450035580. The cubic root of 20191048 is about 272.3033308654.

The spelling of 20191048 in words is "twenty million, one hundred ninety-one thousand, forty-eight".