12478590 has 64 divisors (see below), whose sum is σ = 33652800. Its totient is φ = 3290112.

The previous prime is 12478589. The next prime is 12478591. The reversal of 12478590 is 9587421.

It is an interprime number because it is at equal distance from previous prime (12478589) and next prime (12478591).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12478591) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30306 + ... + 30714.

It is an arithmetic number, because the mean of its divisors is an integer number (525825).

Almost surely, 2^12478590 is an apocalyptic number.

12478590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12478590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16826400).

12478590 is an abundant number, since it is smaller than the sum of its proper divisors (21174210).

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

12478590 is a wasteful number, since it uses less digits than its factorization.

12478590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 12478590 is about 3532.5047770668. The cubic root of 12478590 is about 231.9468640696.

The spelling of 12478590 in words is "twelve million, four hundred seventy-eight thousand, five hundred ninety".