91240434 has 24 divisors (see below), whose sum is σ = 199115280. Its totient is φ = 30193848.

The previous prime is 91240427. The next prime is 91240441. The reversal of 91240434 is 43404219.

It is an interprime number because it is at equal distance from previous prime (91240427) and next prime (91240441).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 91240398 and 91240407.

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, 15732 + ... + 20735.

It is an arithmetic number, because the mean of its divisors is an integer number (8296470).

Almost surely, 2^91240434 is an apocalyptic number.

91240434 is an abundant number, since it is smaller than the sum of its proper divisors (107874846).

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

91240434 is a wasteful number, since it uses less digits than its factorization.

91240434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36614 (or 36611 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 91240434 is about 9551.9858668237. The cubic root of 91240434 is about 450.1899346365.

The spelling of 91240434 in words is "ninety-one million, two hundred forty thousand, four hundred thirty-four".