290431601 has 8 divisors (see below), whose sum is σ = 293551104. Its totient is φ = 287325360.

The previous prime is 290431597. The next prime is 290431613. The reversal of 290431601 is 106134092.

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

It is a cyclic number.

It is not a de Polignac number, because 290431601 - 2² = 290431597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (290431501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44306 + ... + 50436.

It is an arithmetic number, because the mean of its divisors is an integer number (36693888).

Almost surely, 2^290431601 is an apocalyptic number.

It is an amenable number.

290431601 is a deficient number, since it is larger than the sum of its proper divisors (3119503).

290431601 is a wasteful number, since it uses less digits than its factorization.

290431601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6631.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 290431601 is about 17042.0538961711. The cubic root of 290431601 is about 662.2388013166.

Adding to 290431601 its reverse (106134092), we get a palindrome (396565693).

The spelling of 290431601 in words is "two hundred ninety million, four hundred thirty-one thousand, six hundred one".