90409386 has 8 divisors (see below), whose sum is σ = 180818784. Its totient is φ = 30136460.

The previous prime is 90409369. The next prime is 90409409. The reversal of 90409386 is 68390409.

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

90409386 is an admirable number.

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 7534110 + ... + 7534121.

It is an arithmetic number, because the mean of its divisors is an integer number (22602348).

Almost surely, 2^90409386 is an apocalyptic number.

90409386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90409386 is a wasteful number, since it uses less digits than its factorization.

90409386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15068236.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 90409386 is about 9508.3850363771. The cubic root of 90409386 is about 448.8189374827.

The spelling of 90409386 in words is "ninety million, four hundred nine thousand, three hundred eighty-six".