90014840 has 64 divisors (see below), whose sum is σ = 212587200. Its totient is φ = 34255872.

The previous prime is 90014839. The next prime is 90014849. The reversal of 90014840 is 4841009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90014849) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 84149 + ... + 85211.

It is an arithmetic number, because the mean of its divisors is an integer number (3321675).

Almost surely, 2^90014840 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 90014840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106293600).

90014840 is an abundant number, since it is smaller than the sum of its proper divisors (122572360).

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

90014840 is a wasteful number, since it uses less digits than its factorization.

90014840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176 (or 1172 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 90014840 is about 9487.6150849410. The cubic root of 90014840 is about 448.1651044304.

Adding to 90014840 its reverse (4841009), we get a palindrome (94855849).

The spelling of 90014840 in words is "ninety million, fourteen thousand, eight hundred forty".