12077388 has 36 divisors (see below), whose sum is σ = 32137560. Its totient is φ = 3813696.

The previous prime is 12077371. The next prime is 12077393. The reversal of 12077388 is 88377021.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8145 + ... + 9512.

It is an arithmetic number, because the mean of its divisors is an integer number (892710).

Almost surely, 2^12077388 is an apocalyptic number.

12077388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12077388 is an abundant number, since it is smaller than the sum of its proper divisors (20060172).

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

12077388 is a wasteful number, since it uses less digits than its factorization.

12077388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17686 (or 17681 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 12077388 is about 3475.2536598067. The cubic root of 12077388 is about 229.4339451347.

The spelling of 12077388 in words is "twelve million, seventy-seven thousand, three hundred eighty-eight".