90418412 has 48 divisors (see below), whose sum is σ = 186482688. Its totient is φ = 37558080.

The previous prime is 90418411. The next prime is 90418439. The reversal of 90418412 is 21481409.

It is not an unprimeable number, because it can be changed into a prime (90418411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166862 + ... + 167402.

It is an arithmetic number, because the mean of its divisors is an integer number (3885056).

Almost surely, 2^90418412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90418412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93241344).

90418412 is an abundant number, since it is smaller than the sum of its proper divisors (96064276).

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

90418412 is a wasteful number, since it uses less digits than its factorization.

90418412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 90418412 is about 9508.8596582345. The cubic root of 90418412 is about 448.8338728971.

The spelling of 90418412 in words is "ninety million, four hundred eighteen thousand, four hundred twelve".