39920198290 has 64 divisors (see below), whose sum is σ = 83133849600. Its totient is φ = 13519166976.

The previous prime is 39920198257. The next prime is 39920198291. The reversal of 39920198290 is 9289102993.

39920198290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (39920198291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2026006 + ... + 2045614.

It is an arithmetic number, because the mean of its divisors is an integer number (1298966400).

Almost surely, 2^39920198290 is an apocalyptic number.

39920198290 is an abundant number, since it is smaller than the sum of its proper divisors (43213651310).

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

39920198290 is a wasteful number, since it uses less digits than its factorization.

39920198290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19979.

The product of its (nonzero) digits is 629856, while the sum is 52.

The spelling of 39920198290 in words is "thirty-nine billion, nine hundred twenty million, one hundred ninety-eight thousand, two hundred ninety".