90740980 has 96 divisors (see below), whose sum is σ = 220631040. Its totient is φ = 31025280.

The previous prime is 90740939. The next prime is 90741011. The reversal of 90740980 is 8904709.

It is a happy number.

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 31 ways as a sum of consecutive naturals, for example, 399627 + ... + 399853.

It is an arithmetic number, because the mean of its divisors is an integer number (2298240).

Almost surely, 2^90740980 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 90740980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110315520).

90740980 is an abundant number, since it is smaller than the sum of its proper divisors (129890060).

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

90740980 is a wasteful number, since it uses less digits than its factorization.

90740980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 90740980 is about 9525.8060026436. The cubic root of 90740980 is about 449.3669782491.

The spelling of 90740980 in words is "ninety million, seven hundred forty thousand, nine hundred eighty".