9156642 has 32 divisors (see below), whose sum is σ = 21155904. Its totient is φ = 2611200.

The previous prime is 9156629. The next prime is 9156647. The reversal of 9156642 is 2466519.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9156647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2959 + ... + 5202.

It is an arithmetic number, because the mean of its divisors is an integer number (661122).

Almost surely, 2^9156642 is an apocalyptic number.

9156642 is an abundant number, since it is smaller than the sum of its proper divisors (11999262).

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

9156642 is a wasteful number, since it uses less digits than its factorization.

9156642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8194.

The product of its digits is 12960, while the sum is 33.

The square root of 9156642 is about 3025.9943820173. The cubic root of 9156642 is about 209.2082202557.

It can be divided in two parts, 915 and 6642, that added together give a palindrome (7557).

The spelling of 9156642 in words is "nine million, one hundred fifty-six thousand, six hundred forty-two".