20293245 has 48 divisors (see below), whose sum is σ = 41962752. Its totient is φ = 8870400.

The previous prime is 20293241. The next prime is 20293289. The reversal of 20293245 is 54239202.

It is not a de Polignac number, because 20293245 - 2² = 20293241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20293241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5845 + ... + 8645.

It is an arithmetic number, because the mean of its divisors is an integer number (874224).

Almost surely, 2^20293245 is an apocalyptic number.

It is an amenable number.

20293245 is an abundant number, since it is smaller than the sum of its proper divisors (21669507).

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

20293245 is a wasteful number, since it uses less digits than its factorization.

20293245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2842 (or 2839 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 20293245 is about 4504.8024373994. The cubic root of 20293245 is about 272.7619790681.

The spelling of 20293245 in words is "twenty million, two hundred ninety-three thousand, two hundred forty-five".