20607078 has 16 divisors (see below), whose sum is σ = 41269680. Its totient is φ = 6859776.

The previous prime is 20607073. The next prime is 20607109. The reversal of 20607078 is 87070602.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20607073) 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, 3726 + ... + 7422.

It is an arithmetic number, because the mean of its divisors is an integer number (2579355).

Almost surely, 2^20607078 is an apocalyptic number.

20607078 is an abundant number, since it is smaller than the sum of its proper divisors (20662602).

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

20607078 is a wasteful number, since it uses less digits than its factorization.

20607078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4631.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 20607078 is about 4539.5019550607. The cubic root of 20607078 is about 274.1608713074.

The spelling of 20607078 in words is "twenty million, six hundred seven thousand, seventy-eight".