12478620 has 192 divisors, whose sum is σ = 45351936. Its totient is φ = 2488320.

The previous prime is 12478607. The next prime is 12478679. The reversal of 12478620 is 2687421.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 63 ways as a sum of consecutive naturals, for example, 170904 + ... + 170976.

It is an arithmetic number, because the mean of its divisors is an integer number (236208).

Almost surely, 2^12478620 is an apocalyptic number.

12478620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12478620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22675968).

12478620 is an abundant number, since it is smaller than the sum of its proper divisors (32873316).

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

12478620 is a wasteful number, since it uses less digits than its factorization.

12478620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 12478620 is about 3532.5090233430. The cubic root of 12478620 is about 231.9470499453.

The spelling of 12478620 in words is "twelve million, four hundred seventy-eight thousand, six hundred twenty".