290640761369 has 8 divisors (see below), whose sum is σ = 332182310400. Its totient is φ = 249104572416.

The previous prime is 290640761353. The next prime is 290640761371. The reversal of 290640761369 is 963167046092.

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

It is not a de Polignac number, because 290640761369 - 2⁴ = 290640761353 is a prime.

It is a super-2 number, since 2×290640761369² (a number of 24 digits) contains 22 as substring.

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 290640761369.

It is not an unprimeable number, because it can be changed into a prime (290640761269) 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, 1223144 + ... + 1441305.

It is an arithmetic number, because the mean of its divisors is an integer number (41522788800).

Almost surely, 2^290640761369 is an apocalyptic number.

It is an amenable number.

290640761369 is a deficient number, since it is larger than the sum of its proper divisors (41541549031).

290640761369 is a wasteful number, since it uses less digits than its factorization.

290640761369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680039.

The product of its (nonzero) digits is 2939328, while the sum is 53.

The spelling of 290640761369 in words is "two hundred ninety billion, six hundred forty million, seven hundred sixty-one thousand, three hundred sixty-nine".