290407865020 has 192 divisors, whose sum is σ = 770363467776. Its totient is φ = 89519754240.

The previous prime is 290407865017. The next prime is 290407865051. The reversal of 290407865020 is 20568704092.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10711722 + ... + 10738798.

It is an arithmetic number, because the mean of its divisors is an integer number (4012309728).

Almost surely, 2^290407865020 is an apocalyptic number.

290407865020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 290407865020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385181733888).

290407865020 is an abundant number, since it is smaller than the sum of its proper divisors (479955602756).

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

290407865020 is a wasteful number, since it uses less digits than its factorization.

290407865020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27260 (or 27258 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 290407865020 in words is "two hundred ninety billion, four hundred seven million, eight hundred sixty-five thousand, twenty".