20246706 has 16 divisors (see below), whose sum is σ = 44992800. Its totient is φ = 6748884.

The previous prime is 20246701. The next prime is 20246729. The reversal of 20246706 is 60764202.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20246706.

It is not an unprimeable number, because it can be changed into a prime (20246701) 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, 187416 + ... + 187523.

It is an arithmetic number, because the mean of its divisors is an integer number (2812050).

Almost surely, 2^20246706 is an apocalyptic number.

20246706 is an abundant number, since it is smaller than the sum of its proper divisors (24746094).

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

20246706 is a wasteful number, since it uses less digits than its factorization.

20246706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374950 (or 374944 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 20246706 is about 4499.6339851148. The cubic root of 20246706 is about 272.5533088759.

The spelling of 20246706 in words is "twenty million, two hundred forty-six thousand, seven hundred six".