91042300 has 36 divisors (see below), whose sum is σ = 207964120. Its totient is φ = 34499520.

The previous prime is 91042291. The next prime is 91042307. The reversal of 91042300 is 324019.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91042307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22059 + ... + 25858.

Almost surely, 2^91042300 is an apocalyptic number.

It is an amenable number.

91042300 is an abundant number, since it is smaller than the sum of its proper divisors (116921820).

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

91042300 is a wasteful number, since it uses less digits than its factorization.

91042300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47950 (or 47943 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 91042300 is about 9541.6088790099. The cubic root of 91042300 is about 449.8638271101.

Adding to 91042300 its reverse (324019), we get a palindrome (91366319).

The spelling of 91042300 in words is "ninety-one million, forty-two thousand, three hundred".