91457268 has 24 divisors (see below), whose sum is σ = 243886272. Its totient is φ = 26130624.

The previous prime is 91457237. The next prime is 91457291. The reversal of 91457268 is 86275419.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent 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, 544305 + ... + 544472.

It is an arithmetic number, because the mean of its divisors is an integer number (10161928).

Almost surely, 2^91457268 is an apocalyptic number.

It is an amenable number.

91457268 is an abundant number, since it is smaller than the sum of its proper divisors (152429004).

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

91457268 is a wasteful number, since it uses less digits than its factorization.

91457268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088791 (or 1088789 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 91457268 is about 9563.3293365857. The cubic root of 91457268 is about 450.5462797824.

The spelling of 91457268 in words is "ninety-one million, four hundred fifty-seven thousand, two hundred sixty-eight".