290830749 has 8 divisors (see below), whose sum is σ = 423026592. Its totient is φ = 176261040.

The previous prime is 290830723. The next prime is 290830751. The reversal of 290830749 is 947038092.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 290830749 - 2⁷ = 290830621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 290830749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290830649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4406494 + ... + 4406559.

It is an arithmetic number, because the mean of its divisors is an integer number (52878324).

Almost surely, 2^290830749 is an apocalyptic number.

It is an amenable number.

290830749 is a deficient number, since it is larger than the sum of its proper divisors (132195843).

290830749 is a wasteful number, since it uses less digits than its factorization.

290830749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8813067.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 290830749 is about 17053.7605530276. The cubic root of 290830749 is about 662.5420400046.

The spelling of 290830749 in words is "two hundred ninety million, eight hundred thirty thousand, seven hundred forty-nine".