290345966 has 8 divisors (see below), whose sum is σ = 441485184. Its totient is φ = 143184240.

The previous prime is 290345963. The next prime is 290345981. The reversal of 290345966 is 669543092.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290345963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994190 + ... + 994481.

It is an arithmetic number, because the mean of its divisors is an integer number (55185648).

Almost surely, 2^290345966 is an apocalyptic number.

290345966 is a deficient number, since it is larger than the sum of its proper divisors (151139218).

290345966 is a wasteful number, since it uses less digits than its factorization.

290345966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988746.

The product of its (nonzero) digits is 349920, while the sum is 44.

The square root of 290345966 is about 17039.5412496933. The cubic root of 290345966 is about 662.1737069372.

The spelling of 290345966 in words is "two hundred ninety million, three hundred forty-five thousand, nine hundred sixty-six".