20078708 has 12 divisors (see below), whose sum is σ = 37840740. Its totient is φ = 9267072.

The previous prime is 20078693. The next prime is 20078741. The reversal of 20078708 is 80787002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6697744 + 13380964 = 2588^2 + 3658^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193013 + ... + 193116.

It is an arithmetic number, because the mean of its divisors is an integer number (3153395).

Almost surely, 2^20078708 is an apocalyptic number.

It is an amenable number.

20078708 is a deficient number, since it is larger than the sum of its proper divisors (17762032).

20078708 is a wasteful number, since it uses less digits than its factorization.

20078708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386146 (or 386144 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 20078708 is about 4480.9271362074. The cubic root of 20078708 is about 271.7973728788.

The spelling of 20078708 in words is "twenty million, seventy-eight thousand, seven hundred eight".