9139392 has 140 divisors (see below), whose sum is σ = 28398216. Its totient is φ = 2903040.

The previous prime is 9139391. The next prime is 9139393. The reversal of 9139392 is 2939319.

It is an interprime number because it is at equal distance from previous prime (9139391) and next prime (9139393).

It is a super-2 number, since 2×9139392² = 167056972259328, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) 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 (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (9139391) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 212523 + ... + 212565.

Almost surely, 2^9139392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9139392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14199108).

9139392 is an abundant number, since it is smaller than the sum of its proper divisors (19258824).

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

9139392 is a wasteful number, since it uses less digits than its factorization.

9139392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 89 counting only the distinct ones).

The product of its digits is 13122, while the sum is 36.

The square root of 9139392 is about 3023.1427356313. The cubic root of 9139392 is about 209.0767633897.

The spelling of 9139392 in words is "nine million, one hundred thirty-nine thousand, three hundred ninety-two".