290380405804 has 6 divisors (see below), whose sum is σ = 508165710164. Its totient is φ = 145190202900.

The previous prime is 290380405801. The next prime is 290380405817. The reversal of 290380405804 is 408504083092.

It is not an unprimeable number, because it can be changed into a prime (290380405801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36297550722 + ... + 36297550729.

Almost surely, 2^290380405804 is an apocalyptic number.

It is an amenable number.

290380405804 is a deficient number, since it is larger than the sum of its proper divisors (217785304360).

290380405804 is a wasteful number, since it uses less digits than its factorization.

290380405804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72595101455 (or 72595101453 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

Adding to 290380405804 its reverse (408504083092), we get a palindrome (698884488896).

The spelling of 290380405804 in words is "two hundred ninety billion, three hundred eighty million, four hundred five thousand, eight hundred four".