90048218 has 32 divisors (see below), whose sum is σ = 157807440. Its totient is φ = 38154240.

The previous prime is 90048191. The next prime is 90048223. The reversal of 90048218 is 81284009.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 7656289 + 82391929 = 2767^2 + 9077^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15638 + ... + 20606.

Almost surely, 2^90048218 is an apocalyptic number.

90048218 is a deficient number, since it is larger than the sum of its proper divisors (67759222).

90048218 is a wasteful number, since it uses less digits than its factorization.

90048218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5042.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 90048218 is about 9489.3739519528. The cubic root of 90048218 is about 448.2204916172.

It can be divided in two parts, 900482 and 18, that multiplied together give a square (16208676 = 4026²).

The spelling of 90048218 in words is "ninety million, forty-eight thousand, two hundred eighteen".