90336140 has 24 divisors (see below), whose sum is σ = 192380832. Its totient is φ = 35624960.

The previous prime is 90336137. The next prime is 90336151. The reversal of 90336140 is 4163309.

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 7 ways as a sum of consecutive naturals, for example, 30389 + ... + 33228.

It is an arithmetic number, because the mean of its divisors is an integer number (8015868).

Almost surely, 2^90336140 is an apocalyptic number.

It is an amenable number.

90336140 is an abundant number, since it is smaller than the sum of its proper divisors (102044692).

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

90336140 is a wasteful number, since it uses less digits than its factorization.

90336140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63697 (or 63695 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 90336140 is about 9504.5326029216. The cubic root of 90336140 is about 448.6976997989.

Adding to 90336140 its reverse (4163309), we get a palindrome (94499449).

The spelling of 90336140 in words is "ninety million, three hundred thirty-six thousand, one hundred forty".