8380418 has 18 divisors (see below), whose sum is σ = 13290249. Its totient is φ = 3962992.

The previous prime is 8380417. The next prime is 8380451. The reversal of 8380418 is 8140838.

It can be written as a sum of positive squares in 2 ways, for example, as 7491169 + 889249 = 2737^2 + 943^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2047.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8380417) 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 8 ways as a sum of consecutive naturals, for example, 94118 + ... + 94206.

Almost surely, 2^8380418 is an apocalyptic number.

8380418 is a deficient number, since it is larger than the sum of its proper divisors (4909831).

8380418 is an equidigital number, since it uses as much as digits as its factorization.

8380418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 8380418 is about 2894.8951621777. The cubic root of 8380418 is about 203.1211875576.

Multiplying 8380418 by its sum of digits (32), we get a square (268173376 = 16376²).

The spelling of 8380418 in words is "eight million, three hundred eighty thousand, four hundred eighteen".