90438394 has 8 divisors (see below), whose sum is σ = 135928800. Its totient is φ = 45128796.

The previous prime is 90438379. The next prime is 90438401. The reversal of 90438394 is 49383409.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43944 + ... + 45955.

It is an arithmetic number, because the mean of its divisors is an integer number (16991100).

Almost surely, 2^90438394 is an apocalyptic number.

90438394 is a deficient number, since it is larger than the sum of its proper divisors (45490406).

90438394 is a wasteful number, since it uses less digits than its factorization.

90438394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90404.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 90438394 is about 9509.9103045192. The cubic root of 90438394 is about 448.8669337810.

The spelling of 90438394 in words is "ninety million, four hundred thirty-eight thousand, three hundred ninety-four".