9434501890 has 24 divisors (see below), whose sum is σ = 18666281340. Its totient is φ = 3430727520.

The previous prime is 9434501833. The next prime is 9434501891. The reversal of 9434501890 is 981054349.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8098380081 + 1336121809 = 89991^2 + 36553^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (9434501891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3897345 + ... + 3899764.

Almost surely, 2^9434501890 is an apocalyptic number.

9434501890 is a deficient number, since it is larger than the sum of its proper divisors (9231779450).

9434501890 is a wasteful number, since it uses less digits than its factorization.

9434501890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7797138 (or 7797127 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 9434501890 is about 97131.3640900816. The cubic root of 9434501890 is about 2113.0332220251.

The spelling of 9434501890 in words is "nine billion, four hundred thirty-four million, five hundred one thousand, eight hundred ninety".