12267420 has 48 divisors (see below), whose sum is σ = 37473408. Its totient is φ = 2973760.

The previous prime is 12267401. The next prime is 12267439. The reversal of 12267420 is 2476221.

It is an interprime number because it is at equal distance from previous prime (12267401) and next prime (12267439).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8634 + ... + 9953.

It is an arithmetic number, because the mean of its divisors is an integer number (780696).

Almost surely, 2^12267420 is an apocalyptic number.

12267420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12267420 is an abundant number, since it is smaller than the sum of its proper divisors (25205988).

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

12267420 is a wasteful number, since it uses less digits than its factorization.

12267420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18610 (or 18608 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 12267420 is about 3502.4876873445. The cubic root of 12267420 is about 230.6310333246.

It can be divided in two parts, 1226 and 7420, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 12267420 in words is "twelve million, two hundred sixty-seven thousand, four hundred twenty".