91344290 has 16 divisors (see below), whose sum is σ = 169724160. Its totient is φ = 35358960.

The previous prime is 91344283. The next prime is 91344313. The reversal of 91344290 is 9244319.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147020 + ... + 147639.

It is an arithmetic number, because the mean of its divisors is an integer number (10607760).

Almost surely, 2^91344290 is an apocalyptic number.

91344290 is a deficient number, since it is larger than the sum of its proper divisors (78379870).

91344290 is a wasteful number, since it uses less digits than its factorization.

91344290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294697.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 91344290 is about 9557.4206771492. The cubic root of 91344290 is about 450.3606820239.

The spelling of 91344290 in words is "ninety-one million, three hundred forty-four thousand, two hundred ninety".