91940740 has 24 divisors (see below), whose sum is σ = 195797952. Its totient is φ = 36257760.

The previous prime is 91940731. The next prime is 91940741. The reversal of 91940740 is 4704919.

It is a junction number, because it is equal to n+sod(n) for n = 91940696 and 91940705.

It is not an unprimeable number, because it can be changed into a prime (91940741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30954 + ... + 33793.

It is an arithmetic number, because the mean of its divisors is an integer number (8158248).

Almost surely, 2^91940740 is an apocalyptic number.

It is an amenable number.

91940740 is an abundant number, since it is smaller than the sum of its proper divisors (103857212).

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

91940740 is a wasteful number, since it uses less digits than its factorization.

91940740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64827 (or 64825 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 91940740 is about 9588.5734079685. The cubic root of 91940740 is about 451.3387948946.

The spelling of 91940740 in words is "ninety-one million, nine hundred forty thousand, seven hundred forty".