90435000 has 80 divisors (see below), whose sum is σ = 282565800. Its totient is φ = 24112000.

The previous prime is 90434999. The next prime is 90435031. The reversal of 90435000 is 53409.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11986 + ... + 18014.

Almost surely, 2^90435000 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 90435000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141282900).

90435000 is an abundant number, since it is smaller than the sum of its proper divisors (192130800).

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

90435000 is a wasteful number, since it uses less digits than its factorization.

90435000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6058 (or 6039 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 90435000 is about 9509.7318574185. The cubic root of 90435000 is about 448.8613186384.

Adding to 90435000 its reverse (53409), we get a palindrome (90488409).

The spelling of 90435000 in words is "ninety million, four hundred thirty-five thousand".