290140249 has 4 divisors (see below), whose sum is σ = 331588864. Its totient is φ = 248691636.

The previous prime is 290140189. The next prime is 290140261. The reversal of 290140249 is 942041092.

It is a happy number.

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 290140249 - 2¹⁵ = 290107481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 290140249.

It is not an unprimeable number, because it can be changed into a prime (290140349) 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, 20724297 + ... + 20724310.

It is an arithmetic number, because the mean of its divisors is an integer number (82897216).

Almost surely, 2^290140249 is an apocalyptic number.

It is an amenable number.

290140249 is a deficient number, since it is larger than the sum of its proper divisors (41448615).

290140249 is an equidigital number, since it uses as much as digits as its factorization.

290140249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41448614.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 290140249 is about 17033.5037206090. The cubic root of 290140249 is about 662.0172813979.

The spelling of 290140249 in words is "two hundred ninety million, one hundred forty thousand, two hundred forty-nine".