91241444 has 12 divisors (see below), whose sum is σ = 182482944. Its totient is φ = 39103464.

The previous prime is 91241443. The next prime is 91241467. The reversal of 91241444 is 44414219.

91241444 is an admirable number.

It is a super-2 number, since 2×91241444² = 16650002206410272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91241443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1629284 + ... + 1629339.

It is an arithmetic number, because the mean of its divisors is an integer number (15206912).

Almost surely, 2^91241444 is an apocalyptic number.

It is an amenable number.

91241444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

91241444 is a wasteful number, since it uses less digits than its factorization.

91241444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258634 (or 3258632 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 91241444 is about 9552.0387352648. The cubic root of 91241444 is about 450.1915957792.

The spelling of 91241444 in words is "ninety-one million, two hundred forty-one thousand, four hundred forty-four".