9494409690 has 36 divisors (see below), whose sum is σ = 24687868842. Its totient is φ = 2531596080.

The previous prime is 9494409689. The next prime is 9494409697. The reversal of 9494409690 is 969044949.

9494409690 is a `hidden beast` number, since 94 + 94 + 409 + 69 + 0 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8544968721 + 949440969 = 92439^2 + 30813^2 .

It is a super-2 number, since 2×9494409690² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9494409697) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 919255 + ... + 929525.

Almost surely, 2^9494409690 is an apocalyptic number.

9494409690 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

9494409690 is an abundant number, since it is smaller than the sum of its proper divisors (15193459152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9494409690 is an equidigital number, since it uses as much as digits as its factorization.

9494409690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20555 (or 10281 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The square root of 9494409690 is about 97439.2615427683. The cubic root of 9494409690 is about 2117.4962796145.

The spelling of 9494409690 in words is "nine billion, four hundred ninety-four million, four hundred nine thousand, six hundred ninety".