90306546 has 16 divisors (see below), whose sum is σ = 197032608. Its totient is φ = 27365600.

The previous prime is 90306527. The next prime is 90306569. The reversal of 90306546 is 64560309.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684075 + ... + 684206.

It is an arithmetic number, because the mean of its divisors is an integer number (12314538).

Almost surely, 2^90306546 is an apocalyptic number.

90306546 is an abundant number, since it is smaller than the sum of its proper divisors (106726062).

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

90306546 is a wasteful number, since it uses less digits than its factorization.

90306546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368297.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 90306546 is about 9502.9756392406. The cubic root of 90306546 is about 448.6486968564.

It can be divided in two parts, 9030 and 6546, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 90306546 in words is "ninety million, three hundred six thousand, five hundred forty-six".