290001901 has 4 divisors (see below), whose sum is σ = 331430752. Its totient is φ = 248573052.

The previous prime is 290001889. The next prime is 290001923. The reversal of 290001901 is 109100092.

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 not a de Polignac number, because 290001901 - 2¹³ = 289993709 is a prime.

It is a super-2 number, since 2×290001901² = 168202205167227602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290001941) 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, 20714415 + ... + 20714428.

It is an arithmetic number, because the mean of its divisors is an integer number (82857688).

Almost surely, 2^290001901 is an apocalyptic number.

It is an amenable number.

290001901 is a deficient number, since it is larger than the sum of its proper divisors (41428851).

290001901 is an equidigital number, since it uses as much as digits as its factorization.

290001901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41428850.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 290001901 is about 17029.4421811168. The cubic root of 290001901 is about 661.9120411122.

Adding to 290001901 its reverse (109100092), we get a palindrome (399101993).

The spelling of 290001901 in words is "two hundred ninety million, one thousand, nine hundred one".