90385630 has 16 divisors (see below), whose sum is σ = 169768224. Its totient is φ = 34582240.

The previous prime is 90385621. The next prime is 90385637. The reversal of 90385630 is 3658309.

It is a super-2 number, since 2×90385630² = 16339124220993800, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90385637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196261 + ... + 196720.

It is an arithmetic number, because the mean of its divisors is an integer number (10610514).

Almost surely, 2^90385630 is an apocalyptic number.

90385630 is a deficient number, since it is larger than the sum of its proper divisors (79382594).

90385630 is a wasteful number, since it uses less digits than its factorization.

90385630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393011.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 90385630 is about 9507.1357411157. The cubic root of 90385630 is about 448.7796234353.

The spelling of 90385630 in words is "ninety million, three hundred eighty-five thousand, six hundred thirty".