8423345290 has 12 divisors (see below), whose sum is σ = 15162543954. Its totient is φ = 3369222024.

The previous prime is 8423345251. The next prime is 8423345291. The reversal of 8423345290 is 925433248.

It can be written as a sum of positive squares in only one way, i.e., 7581010761 + 842334529 = 87069^2 + 29023^2 .

It is a super-3 number, since 3×8423345290³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (8423345291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 275719 + ... + 304741.

Almost surely, 2^8423345290 is an apocalyptic number.

8423345290 is a deficient number, since it is larger than the sum of its proper divisors (6739198664).

8423345290 is an frugal number, since it uses more digits than its factorization.

8423345290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58053 (or 29030 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 8423345290 is about 91778.7845310669. The cubic root of 8423345290 is about 2034.6741517162.

Multiplying 8423345290 by its sum of digits (40), we get a square (336933811600 = 580460²).

The spelling of 8423345290 in words is "eight billion, four hundred twenty-three million, three hundred forty-five thousand, two hundred ninety".