12377888 has 12 divisors (see below), whose sum is σ = 24369030. Its totient is φ = 6188928.

The previous prime is 12377881. The next prime is 12377917. The reversal of 12377888 is 88877321.

It can be written as a sum of positive squares in only one way, i.e., 12306064 + 71824 = 3508^2 + 268^2 .

It is a super-2 number, since 2×12377888² = 306424222681088, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (12377881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193373 + ... + 193436.

Almost surely, 2^12377888 is an apocalyptic number.

It is an amenable number.

12377888 is a deficient number, since it is larger than the sum of its proper divisors (11991142).

12377888 is an equidigital number, since it uses as much as digits as its factorization.

12377888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386819 (or 386811 counting only the distinct ones).

The product of its digits is 150528, while the sum is 44.

The square root of 12377888 is about 3518.2222783673. Note that the first 4 decimals coincide. The cubic root of 12377888 is about 231.3212424276.

The spelling of 12377888 in words is "twelve million, three hundred seventy-seven thousand, eight hundred eighty-eight".