12057820 has 12 divisors (see below), whose sum is σ = 25321464. Its totient is φ = 4823120.

The previous prime is 12057817. The next prime is 12057821. The reversal of 12057820 is 2875021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12057821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301426 + ... + 301465.

It is an arithmetic number, because the mean of its divisors is an integer number (2110122).

Almost surely, 2^12057820 is an apocalyptic number.

12057820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12057820 is an abundant number, since it is smaller than the sum of its proper divisors (13263644).

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

12057820 is a wasteful number, since it uses less digits than its factorization.

12057820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602900 (or 602898 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 12057820 is about 3472.4371844570. The cubic root of 12057820 is about 229.3099671600.

It can be divided in two parts, 1205 and 7820, that added together give a square (9025 = 95²).

The spelling of 12057820 in words is "twelve million, fifty-seven thousand, eight hundred twenty".