9158742 has 24 divisors (see below), whose sum is σ = 20307144. Its totient is φ = 2981664.

The previous prime is 9158717. The next prime is 9158777. The reversal of 9158742 is 2478519.

It is a junction number, because it is equal to n+sod(n) for n = 9158697 and 9158706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5143 + ... + 6690.

It is an arithmetic number, because the mean of its divisors is an integer number (846131).

Almost surely, 2^9158742 is an apocalyptic number.

9158742 is an abundant number, since it is smaller than the sum of its proper divisors (11148402).

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

9158742 is a wasteful number, since it uses less digits than its factorization.

9158742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11884 (or 11881 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 9158742 is about 3026.3413554984. The cubic root of 9158742 is about 209.2242124240.

The spelling of 9158742 in words is "nine million, one hundred fifty-eight thousand, seven hundred forty-two".