91418242 has 8 divisors (see below), whose sum is σ = 137369232. Its totient is φ = 45628500.

The previous prime is 91418227. The next prime is 91418263. The reversal of 91418242 is 24281419.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38884 + ... + 41167.

It is an arithmetic number, because the mean of its divisors is an integer number (17171154).

Almost surely, 2^91418242 is an apocalyptic number.

91418242 is a deficient number, since it is larger than the sum of its proper divisors (45950990).

91418242 is a wasteful number, since it uses less digits than its factorization.

91418242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80624.

The product of its digits is 4608, while the sum is 31.

The square root of 91418242 is about 9561.2887206694. The cubic root of 91418242 is about 450.4821860220.

The spelling of 91418242 in words is "ninety-one million, four hundred eighteen thousand, two hundred forty-two".