290400841 has 2 divisors, whose sum is σ = 290400842. Its totient is φ = 290400840.

The previous prime is 290400821. The next prime is 290400853. The reversal of 290400841 is 148004092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 265690000 + 24710841 = 16300^2 + 4971^2 .

It is a cyclic number.

It is not a de Polignac number, because 290400841 - 2¹⁵ = 290368073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (290400811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145200420 + 145200421.

It is an arithmetic number, because the mean of its divisors is an integer number (145200421).

Almost surely, 2^290400841 is an apocalyptic number.

It is an amenable number.

290400841 is a deficient number, since it is larger than the sum of its proper divisors (1).

290400841 is an equidigital number, since it uses as much as digits as its factorization.

290400841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 290400841 is about 17041.1513988932. The cubic root of 290400841 is about 662.2154209583.

The spelling of 290400841 in words is "two hundred ninety million, four hundred thousand, eight hundred forty-one".