2290821723 has 64 divisors (see below), whose sum is σ = 3677483520. Its totient is φ = 1404158976.

The previous prime is 2290821719. The next prime is 2290821769. The reversal of 2290821723 is 3271280922.

It is not a de Polignac number, because 2290821723 - 2² = 2290821719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2290821523) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5012511 + ... + 5012967.

It is an arithmetic number, because the mean of its divisors is an integer number (57460680).

Almost surely, 2^2290821723 is an apocalyptic number.

2290821723 is a deficient number, since it is larger than the sum of its proper divisors (1386661797).

2290821723 is a wasteful number, since it uses less digits than its factorization.

2290821723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 707 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2290821723 is about 47862.5294254284. The cubic root of 2290821723 is about 1318.2479285566.

The spelling of 2290821723 in words is "two billion, two hundred ninety million, eight hundred twenty-one thousand, seven hundred twenty-three".