290390741 has 4 divisors (see below), whose sum is σ = 297473484. Its totient is φ = 283308000.

The previous prime is 290390731. The next prime is 290390747. The reversal of 290390741 is 147093092.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62078641 + 228312100 = 7879^2 + 15110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-290390741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290390747) 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 in 3 ways as a sum of consecutive naturals, for example, 3541310 + ... + 3541391.

It is an arithmetic number, because the mean of its divisors is an integer number (74368371).

Almost surely, 2^290390741 is an apocalyptic number.

It is an amenable number.

290390741 is a deficient number, since it is larger than the sum of its proper divisors (7082743).

290390741 is an equidigital number, since it uses as much as digits as its factorization.

290390741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7082742.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 290390741 is about 17040.8550548381. The cubic root of 290390741 is about 662.2077436925.

The spelling of 290390741 in words is "two hundred ninety million, three hundred ninety thousand, seven hundred forty-one".