90753280 has 36 divisors (see below), whose sum is σ = 217385532. Its totient is φ = 36300800.

The previous prime is 90753277. The next prime is 90753281. The reversal of 90753280 is 8235709.

It can be written as a sum of positive squares in 2 ways, for example, as 65028096 + 25725184 = 8064^2 + 5072^2 .

It is not an unprimeable number, because it can be changed into a prime (90753281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34171 + ... + 36730.

It is an arithmetic number, because the mean of its divisors is an integer number (6038487).

Almost surely, 2^90753280 is an apocalyptic number.

It is an amenable number.

90753280 is an abundant number, since it is smaller than the sum of its proper divisors (126632252).

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

90753280 is an equidigital number, since it uses as much as digits as its factorization.

90753280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70922 (or 70908 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 90753280 is about 9526.4515954263. The cubic root of 90753280 is about 449.3872813291.

Adding to 90753280 its reverse (8235709), we get a palindrome (98988989).

The spelling of 90753280 in words is "ninety million, seven hundred fifty-three thousand, two hundred eighty".