91442952 has 32 divisors (see below), whose sum is σ = 254008800. Its totient is φ = 30480912.

The previous prime is 91442951. The next prime is 91442971. The reversal of 91442952 is 25924419.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (91442951) 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, 211458 + ... + 211889.

It is an arithmetic number, because the mean of its divisors is an integer number (7937775).

Almost surely, 2^91442952 is an apocalyptic number.

It is an amenable number.

91442952 is an abundant number, since it is smaller than the sum of its proper divisors (162565848).

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

91442952 is a wasteful number, since it uses less digits than its factorization.

91442952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423362 (or 423352 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 91442952 is about 9562.5808231878. The cubic root of 91442952 is about 450.5227702343.

The spelling of 91442952 in words is "ninety-one million, four hundred forty-two thousand, nine hundred fifty-two".