290045871 has 12 divisors (see below), whose sum is σ = 419103048. Its totient is φ = 193295664.

The previous prime is 290045867. The next prime is 290045897. The reversal of 290045871 is 178540092.

It is not a de Polignac number, because 290045871 - 2² = 290045867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290045471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44976 + ... + 51018.

It is an arithmetic number, because the mean of its divisors is an integer number (34925254).

Almost surely, 2^290045871 is an apocalyptic number.

290045871 is a deficient number, since it is larger than the sum of its proper divisors (129057177).

290045871 is a wasteful number, since it uses less digits than its factorization.

290045871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11382 (or 11379 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 290045871 is about 17030.7331316065. The cubic root of 290045871 is about 661.9454923890.

The spelling of 290045871 in words is "two hundred ninety million, forty-five thousand, eight hundred seventy-one".