91494228 has 24 divisors (see below), whose sum is σ = 243984832. Its totient is φ = 26141184.

The previous prime is 91494223. The next prime is 91494251. The reversal of 91494228 is 82249419.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91494223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544525 + ... + 544692.

Almost surely, 2^91494228 is an apocalyptic number.

It is an amenable number.

91494228 is an abundant number, since it is smaller than the sum of its proper divisors (152490604).

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

91494228 is a wasteful number, since it uses less digits than its factorization.

91494228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089231 (or 1089229 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 91494228 is about 9565.2615228231. The cubic root of 91494228 is about 450.6069636704.

The spelling of 91494228 in words is "ninety-one million, four hundred ninety-four thousand, two hundred twenty-eight".