2345221623 has 16 divisors (see below), whose sum is σ = 3295604480. Its totient is φ = 1479363264.

The previous prime is 2345221609. The next prime is 2345221631. The reversal of 2345221623 is 3261225432.

It is not a de Polignac number, because 2345221623 - 2⁶ = 2345221559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2345221603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21915 + ... + 71907.

It is an arithmetic number, because the mean of its divisors is an integer number (205975280).

Almost surely, 2^2345221623 is an apocalyptic number.

2345221623 is a deficient number, since it is larger than the sum of its proper divisors (950382857).

2345221623 is a wasteful number, since it uses less digits than its factorization.

2345221623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50838.

The product of its digits is 17280, while the sum is 30.

The square root of 2345221623 is about 48427.4882995185. The cubic root of 2345221623 is about 1328.6011680293.

The spelling of 2345221623 in words is "two billion, three hundred forty-five million, two hundred twenty-one thousand, six hundred twenty-three".