290363204340 has 72 divisors (see below), whose sum is σ = 960838246368. Its totient is φ = 70391079360.

The previous prime is 290363204267. The next prime is 290363204359. The reversal of 290363204340 is 43402363092.

290363204340 is a `hidden beast` number, since 2 + 90 + 363 + 204 + 3 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 290363204295 and 290363204304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73322062 + ... + 73326021.

It is an arithmetic number, because the mean of its divisors is an integer number (13344975644).

Almost surely, 2^290363204340 is an apocalyptic number.

290363204340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290363204340 is an abundant number, since it is smaller than the sum of its proper divisors (670475042028).

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

290363204340 is a wasteful number, since it uses less digits than its factorization.

290363204340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146648109 (or 146648104 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The spelling of 290363204340 in words is "two hundred ninety billion, three hundred sixty-three million, two hundred four thousand, three hundred forty".