290464641 has 6 divisors (see below), whose sum is σ = 419560050. Its totient is φ = 193643088.

The previous prime is 290464639. The next prime is 290464679. The reversal of 290464641 is 146464092.

290464641 is a `hidden beast` number, since 2 + 9 + 0 + 4 + 6 + 4 + 641 = 666.

It can be written as a sum of positive squares in only one way, i.e., 290361600 + 103041 = 17040^2 + 321^2 .

It is not a de Polignac number, because 290464641 - 2¹ = 290464639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 290464596 and 290464605.

It is not an unprimeable number, because it can be changed into a prime (290460641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16136916 + ... + 16136933.

It is an arithmetic number, because the mean of its divisors is an integer number (69926675).

Almost surely, 2^290464641 is an apocalyptic number.

It is an amenable number.

290464641 is a deficient number, since it is larger than the sum of its proper divisors (129095409).

290464641 is a wasteful number, since it uses less digits than its factorization.

290464641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32273855 (or 32273852 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 290464641 is about 17043.0232353301. The cubic root of 290464641 is about 662.2639128406.

The spelling of 290464641 in words is "two hundred ninety million, four hundred sixty-four thousand, six hundred forty-one".