91242416 has 20 divisors (see below), whose sum is σ = 180544992. Its totient is φ = 44650176.

The previous prime is 91242391. The next prime is 91242421. The reversal of 91242416 is 61424219.

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, 59915 + ... + 61418.

Almost surely, 2^91242416 is an apocalyptic number.

It is an amenable number.

91242416 is a deficient number, since it is larger than the sum of its proper divisors (89302576).

91242416 is a wasteful number, since it uses less digits than its factorization.

91242416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121388 (or 121382 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 91242416 is about 9552.0896143200. The cubic root of 91242416 is about 450.1931944120.

The spelling of 91242416 in words is "ninety-one million, two hundred forty-two thousand, four hundred sixteen".