12277830 has 16 divisors (see below), whose sum is σ = 29466864. Its totient is φ = 3274080.

The previous prime is 12277807. The next prime is 12277843. The reversal of 12277830 is 3877221.

12277830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 409261 = 12277830 / (1 + 2 + 2 + 7 + 7 + 8 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204601 + ... + 204660.

It is an arithmetic number, because the mean of its divisors is an integer number (1841679).

Almost surely, 2^12277830 is an apocalyptic number.

12277830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12277830 is an abundant number, since it is smaller than the sum of its proper divisors (17189034).

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

12277830 is a wasteful number, since it uses less digits than its factorization.

12277830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409271.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 12277830 is about 3503.9734588036. The cubic root of 12277830 is about 230.6962518807.

The spelling of 12277830 in words is "twelve million, two hundred seventy-seven thousand, eight hundred thirty".