20245337 has 4 divisors (see below), whose sum is σ = 23137536. Its totient is φ = 17353140.

The previous prime is 20245301. The next prime is 20245339. The reversal of 20245337 is 73354202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20245337 - 2⁶ = 20245273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20245339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1446089 + ... + 1446102.

It is an arithmetic number, because the mean of its divisors is an integer number (5784384).

Almost surely, 2^20245337 is an apocalyptic number.

It is an amenable number.

20245337 is a deficient number, since it is larger than the sum of its proper divisors (2892199).

20245337 is an equidigital number, since it uses as much as digits as its factorization.

20245337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2892198.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 20245337 is about 4499.4818590589. The cubic root of 20245337 is about 272.5471657550.

Adding to 20245337 its reverse (73354202), we get a palindrome (93599539).

The spelling of 20245337 in words is "twenty million, two hundred forty-five thousand, three hundred thirty-seven".