20078074 has 4 divisors (see below), whose sum is σ = 30117114. Its totient is φ = 10039036.

The previous prime is 20078059. The next prime is 20078081. The reversal of 20078074 is 47087002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18533025 + 1545049 = 4305^2 + 1243^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5019517 + ... + 5019520.

Almost surely, 2^20078074 is an apocalyptic number.

20078074 is a deficient number, since it is larger than the sum of its proper divisors (10039040).

20078074 is a wasteful number, since it uses less digits than its factorization.

20078074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10039039.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 20078074 is about 4480.8563913609. The cubic root of 20078074 is about 271.7945121146.

The spelling of 20078074 in words is "twenty million, seventy-eight thousand, seventy-four".