20490038292 has 48 divisors (see below), whose sum is σ = 50349499200. Its totient is φ = 6467569920.

The previous prime is 20490038291. The next prime is 20490038297. The reversal of 20490038292 is 29283009402.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20490038292.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20490038291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506992 + ... + 545912.

It is an arithmetic number, because the mean of its divisors is an integer number (1048947900).

Almost surely, 2^20490038292 is an apocalyptic number.

It is an amenable number.

20490038292 is an abundant number, since it is smaller than the sum of its proper divisors (29859460908).

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

20490038292 is a wasteful number, since it uses less digits than its factorization.

20490038292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41256 (or 41254 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 20490038292 in words is "twenty billion, four hundred ninety million, thirty-eight thousand, two hundred ninety-two".