12040479400 has 24 divisors (see below), whose sum is σ = 27994115070. Its totient is φ = 4816191680.

The previous prime is 12040479383. The next prime is 12040479403. The reversal of 12040479400 is 497404021.

It can be written as a sum of positive squares in 3 ways, for example, as 9363658756 + 2676820644 = 96766^2 + 51738^2 .

It is not an unprimeable number, because it can be changed into a prime (12040479403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30100999 + ... + 30101398.

Almost surely, 2^12040479400 is an apocalyptic number.

12040479400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12040479400 is an abundant number, since it is smaller than the sum of its proper divisors (15953635670).

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

12040479400 is a wasteful number, since it uses less digits than its factorization.

12040479400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60202413 (or 60202404 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 12040479400 in words is "twelve billion, forty million, four hundred seventy-nine thousand, four hundred".