9493839090 has 40 divisors (see below), whose sum is σ = 25527880620. Its totient is φ = 2531690208.

The previous prime is 9493839083. The next prime is 9493839133. The reversal of 9493839090 is 909383949.

9493839090 is a `hidden beast` number, since 94 + 9 + 383 + 90 + 90 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8908150689 + 585688401 = 94383^2 + 24201^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5859585 + ... + 5861204.

Almost surely, 2^9493839090 is an apocalyptic number.

9493839090 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

9493839090 is an abundant number, since it is smaller than the sum of its proper divisors (16034041530).

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

9493839090 is a wasteful number, since it uses less digits than its factorization.

9493839090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11720808 (or 11720799 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 54.

The square root of 9493839090 is about 97436.3335209202. Note that the first 3 decimals coincide. The cubic root of 9493839090 is about 2117.4538592984.

The spelling of 9493839090 in words is "nine billion, four hundred ninety-three million, eight hundred thirty-nine thousand, ninety".