12578874 has 64 divisors (see below), whose sum is σ = 33039360. Its totient is φ = 3093120.

The previous prime is 12578807. The next prime is 12578879. The reversal of 12578874 is 47887521.

It is a super-2 number, since 2×12578874² = 316456142215752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (12578879) 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, 8062 + ... + 9494.

It is an arithmetic number, because the mean of its divisors is an integer number (516240).

Almost surely, 2^12578874 is an apocalyptic number.

12578874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12578874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16519680).

12578874 is an abundant number, since it is smaller than the sum of its proper divisors (20460486).

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

12578874 is a wasteful number, since it uses less digits than its factorization.

12578874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475.

The product of its digits is 125440, while the sum is 42.

The square root of 12578874 is about 3546.6708333309. The cubic root of 12578874 is about 232.5665528056.

The spelling of 12578874 in words is "twelve million, five hundred seventy-eight thousand, eight hundred seventy-four".