20245722 has 24 divisors (see below), whose sum is σ = 47102976. Its totient is φ = 5784408.

The previous prime is 20245711. The next prime is 20245739. The reversal of 20245722 is 22754202.

It is a junction number, because it is equal to n+sod(n) for n = 20245692 and 20245701.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34138 + ... + 34725.

It is an arithmetic number, because the mean of its divisors is an integer number (1962624).

Almost surely, 2^20245722 is an apocalyptic number.

20245722 is an abundant number, since it is smaller than the sum of its proper divisors (26857254).

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

20245722 is a wasteful number, since it uses less digits than its factorization.

20245722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68882 (or 68875 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 20245722 is about 4499.5246415594. The cubic root of 20245722 is about 272.5488933955.

Adding to 20245722 its reverse (22754202), we get a palindrome (42999924).

The spelling of 20245722 in words is "twenty million, two hundred forty-five thousand, seven hundred twenty-two".