9280386 has 32 divisors (see below), whose sum is σ = 20865600. Its totient is φ = 3057120.

The previous prime is 9280321. The next prime is 9280387. The reversal of 9280386 is 6830829.

It is a super-2 number, since 2×9280386² = 172251128617992, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 9280386.

It is not an unprimeable number, because it can be changed into a prime (9280387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3841 + ... + 5771.

It is an arithmetic number, because the mean of its divisors is an integer number (652050).

Almost surely, 2^9280386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9280386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10432800).

9280386 is an abundant number, since it is smaller than the sum of its proper divisors (11585214).

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

9280386 is a wasteful number, since it uses less digits than its factorization.

9280386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031 (or 2025 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 9280386 is about 3046.3725970406. The cubic root of 9280386 is about 210.1464284871.

The spelling of 9280386 in words is "nine million, two hundred eighty thousand, three hundred eighty-six".