90343680 has 144 divisors (see below), whose sum is σ = 329852544. Its totient is φ = 20643840.

The previous prime is 90343679. The next prime is 90343681. The reversal of 90343680 is 8634309.

It is an interprime number because it is at equal distance from previous prime (90343679) and next prime (90343681).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90343681) 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, 25200 + ... + 28560.

Almost surely, 2^90343680 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 90343680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164926272).

90343680 is an abundant number, since it is smaller than the sum of its proper divisors (239508864).

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

90343680 is a wasteful number, since it uses less digits than its factorization.

90343680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392 (or 3378 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 90343680 is about 9504.9292475010. The cubic root of 90343680 is about 448.7101831252.

Adding to 90343680 its reverse (8634309), we get a palindrome (98977989).

The spelling of 90343680 in words is "ninety million, three hundred forty-three thousand, six hundred eighty".