91408022 has 8 divisors (see below), whose sum is σ = 137559576. Its totient is φ = 45554832.

The previous prime is 91408021. The next prime is 91408043. The reversal of 91408022 is 22080419.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 91407982 and 91408000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91408021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73823 + ... + 75050.

It is an arithmetic number, because the mean of its divisors is an integer number (17194947).

Almost surely, 2^91408022 is an apocalyptic number.

91408022 is a deficient number, since it is larger than the sum of its proper divisors (46151554).

91408022 is a wasteful number, since it uses less digits than its factorization.

91408022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149182.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 91408022 is about 9560.7542589484. The cubic root of 91408022 is about 450.4653983459.

The spelling of 91408022 in words is "ninety-one million, four hundred eight thousand, twenty-two".