290628011 has 4 divisors (see below), whose sum is σ = 292719000. Its totient is φ = 288537024.

The previous prime is 290628001. The next prime is 290628017. The reversal of 290628011 is 110826092.

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

It is a cyclic number.

It is not a de Polignac number, because 290628011 - 2¹⁴ = 290611627 is a prime.

It is a super-2 number, since 2×290628011² = 168929281555632242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (290628017) 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, 1045286 + ... + 1045563.

It is an arithmetic number, because the mean of its divisors is an integer number (73179750).

Almost surely, 2^290628011 is an apocalyptic number.

290628011 is a deficient number, since it is larger than the sum of its proper divisors (2090989).

290628011 is a wasteful number, since it uses less digits than its factorization.

290628011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090988.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 290628011 is about 17047.8154318963. The cubic root of 290628011 is about 662.3880516194.

It can be divided in two parts, 29062 and 8011, that added together give a palindrome (37073).

The spelling of 290628011 in words is "two hundred ninety million, six hundred twenty-eight thousand, eleven".