2290409208 has 72 divisors (see below), whose sum is σ = 6409621920. Its totient is φ = 738112320.

The previous prime is 2290409189. The next prime is 2290409227. The reversal of 2290409208 is 8029040922.

2290409208 is a `hidden beast` number, since 229 + 0 + 409 + 20 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (2290409189) and next prime (2290409227).

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2260510 + ... + 2261522.

Almost surely, 2^2290409208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2290409208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3204810960).

2290409208 is an abundant number, since it is smaller than the sum of its proper divisors (4119212712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2290409208 is a wasteful number, since it uses less digits than its factorization.

2290409208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069 (or 1049 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2290409208 is about 47858.2198582438. The cubic root of 2290409208 is about 1318.1687968804.

The spelling of 2290409208 in words is "two billion, two hundred ninety million, four hundred nine thousand, two hundred eight".