9434580638 has 20 divisors (see below), whose sum is σ = 16509542160. Its totient is φ = 4043389644.

The previous prime is 9434580613. The next prime is 9434580667. The reversal of 9434580638 is 8360854349.

It is a happy number.

It is a super-2 number, since 2×9434580638² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 977558 + ... + 987161.

It is an arithmetic number, because the mean of its divisors is an integer number (825477108).

Almost surely, 2^9434580638 is an apocalyptic number.

9434580638 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

9434580638 is a deficient number, since it is larger than the sum of its proper divisors (7074961522).

9434580638 is an equidigital number, since it uses as much as digits as its factorization.

9434580638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964749 (or 1964728 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 50.

The square root of 9434580638 is about 97131.7694577835. The cubic root of 9434580638 is about 2113.0391010381.

The spelling of 9434580638 in words is "nine billion, four hundred thirty-four million, five hundred eighty thousand, six hundred thirty-eight".