20048578 has 16 divisors (see below), whose sum is σ = 33571296. Its totient is φ = 8900640.

The previous prime is 20048551. The next prime is 20048579. The reversal of 20048578 is 87584002.

It is not an unprimeable number, because it can be changed into a prime (20048579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9651 + ... + 11542.

It is an arithmetic number, because the mean of its divisors is an integer number (2098206).

Almost surely, 2^20048578 is an apocalyptic number.

20048578 is a deficient number, since it is larger than the sum of its proper divisors (13522718).

20048578 is a wasteful number, since it uses less digits than its factorization.

20048578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21249.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 20048578 is about 4477.5638465576. The cubic root of 20048578 is about 271.6613522658.

The spelling of 20048578 in words is "twenty million, forty-eight thousand, five hundred seventy-eight".