90436480 has 32 divisors (see below), whose sum is σ = 216201240. Its totient is φ = 36174336.

The previous prime is 90436459. The next prime is 90436543. The reversal of 90436480 is 8463409.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70014 + ... + 71293.

Almost surely, 2^90436480 is an apocalyptic number.

It is an amenable number.

90436480 is an abundant number, since it is smaller than the sum of its proper divisors (125764760).

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

90436480 is a wasteful number, since it uses less digits than its factorization.

90436480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141326 (or 141314 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 90436480 is about 9509.8096721228. The cubic root of 90436480 is about 448.8637672152.

Adding to 90436480 its reverse (8463409), we get a palindrome (98899889).

The spelling of 90436480 in words is "ninety million, four hundred thirty-six thousand, four hundred eighty".