290384423802 has 192 divisors, whose sum is σ = 718801993728. Its totient is φ = 83952288000.

The previous prime is 290384423801. The next prime is 290384423807. The reversal of 290384423802 is 208324483092.

It is a super-2 number, since 2×290384423802² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (290384423801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 73198023 + ... + 73201989.

It is an arithmetic number, because the mean of its divisors is an integer number (3743760384).

Almost surely, 2^290384423802 is an apocalyptic number.

290384423802 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 290384423802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359400996864).

290384423802 is an abundant number, since it is smaller than the sum of its proper divisors (428417569926).

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

290384423802 is a wasteful number, since it uses less digits than its factorization.

290384423802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4225 (or 4222 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 290384423802 in words is "two hundred ninety billion, three hundred eighty-four million, four hundred twenty-three thousand, eight hundred two".