20244730 has 16 divisors (see below), whose sum is σ = 39753504. Its totient is φ = 7361680.

The previous prime is 20244713. The next prime is 20244751. The reversal of 20244730 is 3744202.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91912 + ... + 92131.

It is an arithmetic number, because the mean of its divisors is an integer number (2484594).

Almost surely, 2^20244730 is an apocalyptic number.

20244730 is a deficient number, since it is larger than the sum of its proper divisors (19508774).

20244730 is a wasteful number, since it uses less digits than its factorization.

20244730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184061.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 20244730 is about 4499.4144063422. The cubic root of 20244730 is about 272.5444418721.

Adding to 20244730 its reverse (3744202), we get a palindrome (23988932).

The spelling of 20244730 in words is "twenty million, two hundred forty-four thousand, seven hundred thirty".