20417772 has 24 divisors (see below), whose sum is σ = 47803392. Its totient is φ = 6782800.

The previous prime is 20417759. The next prime is 20417779. The reversal of 20417772 is 27771402.

It is not an unprimeable number, because it can be changed into a prime (20417779) 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, 997 + ... + 6467.

It is an arithmetic number, because the mean of its divisors is an integer number (1991808).

Almost surely, 2^20417772 is an apocalyptic number.

It is an amenable number.

20417772 is an abundant number, since it is smaller than the sum of its proper divisors (27385620).

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

20417772 is a wasteful number, since it uses less digits than its factorization.

20417772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5789 (or 5787 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 20417772 is about 4518.6028814225. The cubic root of 20417772 is about 273.3187651698.

The spelling of 20417772 in words is "twenty million, four hundred seventeen thousand, seven hundred seventy-two".