91440350 has 48 divisors (see below), whose sum is σ = 180992880. Its totient is φ = 34272000.

The previous prime is 91440337. The next prime is 91440379. The reversal of 91440350 is 5304419.

It is a super-2 number, since 2×91440350² = 16722675216245000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95474 + ... + 96426.

It is an arithmetic number, because the mean of its divisors is an integer number (3770685).

Almost surely, 2^91440350 is an apocalyptic number.

91440350 is a deficient number, since it is larger than the sum of its proper divisors (89552530).

91440350 is a wasteful number, since it uses less digits than its factorization.

91440350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085 (or 1080 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 91440350 is about 9562.4447710823. Note that the first 3 decimals coincide. The cubic root of 91440350 is about 450.5184970004.

Adding to 91440350 its reverse (5304419), we get a palindrome (96744769).

It can be divided in two parts, 91440 and 350, that multiplied together give a triangular number (32004000 = T₈₀₀₀).

The spelling of 91440350 in words is "ninety-one million, four hundred forty thousand, three hundred fifty".