91260402 has 16 divisors (see below), whose sum is σ = 183202560. Its totient is φ = 30306512.

The previous prime is 91260397. The next prime is 91260427. The reversal of 91260402 is 20406219.

It is an unprimeable number.

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, 26658 + ... + 29885.

It is an arithmetic number, because the mean of its divisors is an integer number (11450160).

Almost surely, 2^91260402 is an apocalyptic number.

91260402 is an abundant number, since it is smaller than the sum of its proper divisors (91942158).

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

91260402 is a wasteful number, since it uses less digits than its factorization.

91260402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56817.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 91260402 is about 9553.0310373200. The cubic root of 91260402 is about 450.2227736478. Note that the first 3 decimals are identical.

The spelling of 91260402 in words is "ninety-one million, two hundred sixty thousand, four hundred two".