12473478 has 24 divisors (see below), whose sum is σ = 28616328. Its totient is φ = 3913152.

The previous prime is 12473441. The next prime is 12473479. The reversal of 12473478 is 87437421.

It is a happy number.

12473478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12473479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20076 + ... + 20687.

It is an arithmetic number, because the mean of its divisors is an integer number (1192347).

Almost surely, 2^12473478 is an apocalyptic number.

12473478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12473478 is an abundant number, since it is smaller than the sum of its proper divisors (16142850).

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

12473478 is a wasteful number, since it uses less digits than its factorization.

12473478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40788 (or 40785 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 12473478 is about 3531.7811370469. The cubic root of 12473478 is about 231.9151864971.

The spelling of 12473478 in words is "twelve million, four hundred seventy-three thousand, four hundred seventy-eight".