90448018 has 16 divisors (see below), whose sum is σ = 147421440. Its totient is φ = 41461200.

The previous prime is 90447991. The next prime is 90448027. The reversal of 90448018 is 81084409.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37213 + ... + 39568.

It is an arithmetic number, because the mean of its divisors is an integer number (9213840).

Almost surely, 2^90448018 is an apocalyptic number.

90448018 is a deficient number, since it is larger than the sum of its proper divisors (56973422).

90448018 is a wasteful number, since it uses less digits than its factorization.

90448018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76833.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 90448018 is about 9510.4162895217. The cubic root of 90448018 is about 448.8828552717.

The spelling of 90448018 in words is "ninety million, four hundred forty-eight thousand, eighteen".