20245244 has 12 divisors (see below), whose sum is σ = 36969744. Its totient is φ = 9682464.

The previous prime is 20245237. The next prime is 20245259. The reversal of 20245244 is 44254202.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 109937 + ... + 110120.

It is an arithmetic number, because the mean of its divisors is an integer number (3080812).

Almost surely, 2^20245244 is an apocalyptic number.

It is an amenable number.

20245244 is a deficient number, since it is larger than the sum of its proper divisors (16724500).

20245244 is a wasteful number, since it uses less digits than its factorization.

20245244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220084 (or 220082 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 20245244 is about 4499.4715245237. The cubic root of 20245244 is about 272.5467484255.

Adding to 20245244 its reverse (44254202), we get a palindrome (64499446).

The spelling of 20245244 in words is "twenty million, two hundred forty-five thousand, two hundred forty-four".