90185332 has 12 divisors (see below), whose sum is σ = 158027940. Its totient is φ = 45034496.

The previous prime is 90185311. The next prime is 90185351. The reversal of 90185332 is 23358109.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 67963536 + 22221796 = 8244^2 + 4714^2 .

It is a junction number, because it is equal to n+sod(n) for n = 90185294 and 90185303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10957 + ... + 17332.

It is an arithmetic number, because the mean of its divisors is an integer number (13168995).

Almost surely, 2^90185332 is an apocalyptic number.

It is an amenable number.

90185332 is a deficient number, since it is larger than the sum of its proper divisors (67842608).

90185332 is a wasteful number, since it uses less digits than its factorization.

90185332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29090 (or 29088 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 90185332 is about 9496.5958111315. The cubic root of 90185332 is about 448.4478740096.

The spelling of 90185332 in words is "ninety million, one hundred eighty-five thousand, three hundred thirty-two".