90306532 has 6 divisors (see below), whose sum is σ = 158036438. Its totient is φ = 45153264.

The previous prime is 90306527. The next prime is 90306569. The reversal of 90306532 is 23560309.

It can be written as a sum of positive squares in only one way, i.e., 77158656 + 13147876 = 8784^2 + 3626^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 90306532.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11288313 + ... + 11288320.

Almost surely, 2^90306532 is an apocalyptic number.

It is an amenable number.

90306532 is a deficient number, since it is larger than the sum of its proper divisors (67729906).

90306532 is a wasteful number, since it uses less digits than its factorization.

90306532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22576637 (or 22576635 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 90306532 is about 9502.9749026292. The cubic root of 90306532 is about 448.6486736721.

The spelling of 90306532 in words is "ninety million, three hundred six thousand, five hundred thirty-two".