91840342 has 8 divisors (see below), whose sum is σ = 150284232. Its totient is φ = 41745600.

The previous prime is 91840313. The next prime is 91840349. The reversal of 91840342 is 24304819.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91840349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2087259 + ... + 2087302.

It is an arithmetic number, because the mean of its divisors is an integer number (18785529).

Almost surely, 2^91840342 is an apocalyptic number.

91840342 is a deficient number, since it is larger than the sum of its proper divisors (58443890).

91840342 is a wasteful number, since it uses less digits than its factorization.

91840342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4174574.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 91840342 is about 9583.3366840574. The cubic root of 91840342 is about 451.1744498457.

The spelling of 91840342 in words is "ninety-one million, eight hundred forty thousand, three hundred forty-two".