12403770 has 64 divisors (see below), whose sum is σ = 32071680. Its totient is φ = 3060288.

The previous prime is 12403763. The next prime is 12403837. The reversal of 12403770 is 7730421.

12403770 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12403770.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26559 + ... + 27021.

It is an arithmetic number, because the mean of its divisors is an integer number (501120).

Almost surely, 2^12403770 is an apocalyptic number.

12403770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12403770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16035840).

12403770 is an abundant number, since it is smaller than the sum of its proper divisors (19667910).

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

12403770 is a wasteful number, since it uses less digits than its factorization.

12403770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 12403770 is about 3521.8986356793. The cubic root of 12403770 is about 231.4823600670.

The spelling of 12403770 in words is "twelve million, four hundred three thousand, seven hundred seventy".