12277020 has 48 divisors (see below), whose sum is σ = 39287808. Its totient is φ = 2806080.

The previous prime is 12277019. The next prime is 12277033. The reversal of 12277020 is 2077221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 14196 + ... + 15035.

It is an arithmetic number, because the mean of its divisors is an integer number (818496).

Almost surely, 2^12277020 is an apocalyptic number.

12277020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12277020 is an abundant number, since it is smaller than the sum of its proper divisors (27010788).

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

12277020 is a wasteful number, since it uses less digits than its factorization.

12277020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29250 (or 29248 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 12277020 is about 3503.8578738299. The cubic root of 12277020 is about 230.6911785609.

The spelling of 12277020 in words is "twelve million, two hundred seventy-seven thousand, twenty".