91267040 has 24 divisors (see below), whose sum is σ = 215618760. Its totient is φ = 36506752.

The previous prime is 91267039. The next prime is 91267061. The reversal of 91267040 is 4076219.

It is a junction number, because it is equal to n+sod(n) for n = 91266994 and 91267012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285050 + ... + 285369.

It is an arithmetic number, because the mean of its divisors is an integer number (8984115).

Almost surely, 2^91267040 is an apocalyptic number.

It is an amenable number.

91267040 is an abundant number, since it is smaller than the sum of its proper divisors (124351720).

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

91267040 is a wasteful number, since it uses less digits than its factorization.

91267040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570434 (or 570426 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 91267040 is about 9553.3784600004. The cubic root of 91267040 is about 450.2336893215.

The spelling of 91267040 in words is "ninety-one million, two hundred sixty-seven thousand, forty".