290442001 has 4 divisors (see below), whose sum is σ = 291135600. Its totient is φ = 289748404.

The previous prime is 290441981. The next prime is 290442013. The reversal of 290442001 is 100244092.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 290442001 - 2⁵ = 290441969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (290442041) 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, 346171 + ... + 347008.

It is an arithmetic number, because the mean of its divisors is an integer number (72783900).

Almost surely, 2^290442001 is an apocalyptic number.

It is an amenable number.

290442001 is a deficient number, since it is larger than the sum of its proper divisors (693599).

290442001 is an equidigital number, since it uses as much as digits as its factorization.

290442001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693598.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 290442001 is about 17042.3590209806. The cubic root of 290442001 is about 662.2467058758.

Adding to 290442001 its reverse (100244092), we get a palindrome (390686093).

The spelling of 290442001 in words is "two hundred ninety million, four hundred forty-two thousand, one".