90628450 has 48 divisors (see below), whose sum is σ = 188425440. Its totient is φ = 32144000.

The previous prime is 90628403. The next prime is 90628453. The reversal of 90628450 is 5482609.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (90628453) 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 23 ways as a sum of consecutive naturals, for example, 20541 + ... + 24559.

It is an arithmetic number, because the mean of its divisors is an integer number (3925530).

Almost surely, 2^90628450 is an apocalyptic number.

90628450 is an abundant number, since it is smaller than the sum of its proper divisors (97796990).

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

90628450 is a wasteful number, since it uses less digits than its factorization.

90628450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4083 (or 4078 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 90628450 is about 9519.8975834827. The cubic root of 90628450 is about 449.1811445949.

The spelling of 90628450 in words is "ninety million, six hundred twenty-eight thousand, four hundred fifty".