20078298 has 24 divisors (see below), whose sum is σ = 43606836. Its totient is φ = 6676800.

The previous prime is 20078273. The next prime is 20078299. The reversal of 20078298 is 89287002.

It can be written as a sum of positive squares in 2 ways, for example, as 19474569 + 603729 = 4413^2 + 777^2 .

It is not an unprimeable number, because it can be changed into a prime (20078299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8308 + ... + 10448.

Almost surely, 2^20078298 is an apocalyptic number.

20078298 is an abundant number, since it is smaller than the sum of its proper divisors (23528538).

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

20078298 is a wasteful number, since it uses less digits than its factorization.

20078298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670 (or 2667 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 20078298 is about 4480.8813865131. The cubic root of 20078298 is about 271.7955228647.

The spelling of 20078298 in words is "twenty million, seventy-eight thousand, two hundred ninety-eight".