12320770 has 32 divisors (see below), whose sum is σ = 27651456. Its totient is φ = 3840000.

The previous prime is 12320753. The next prime is 12320773. The reversal of 12320770 is 7702321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (12320773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7231 + ... + 8770.

It is an arithmetic number, because the mean of its divisors is an integer number (864108).

Almost surely, 2^12320770 is an apocalyptic number.

12320770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12320770 is an abundant number, since it is smaller than the sum of its proper divisors (15330686).

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

12320770 is a wasteful number, since it uses less digits than its factorization.

12320770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16026.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 12320770 is about 3510.0954402979. The cubic root of 12320770 is about 230.9648816262.

It can be divided in two parts, 12320 and 770, that multiplied together give a square (9486400 = 3080²).

The spelling of 12320770 in words is "twelve million, three hundred twenty thousand, seven hundred seventy".