12940015284 has 144 divisors (see below), whose sum is σ = 40265505280. Its totient is φ = 3421051200.

The previous prime is 12940015271. The next prime is 12940015301. The reversal of 12940015284 is 48251004921.

12940015284 is a `hidden beast` number, since 1 + 29 + 400 + 152 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 174459 + ... + 237309.

Almost surely, 2^12940015284 is an apocalyptic number.

12940015284 is a gapful number since it is divisible by the number (14) 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 12940015284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20132752640).

12940015284 is an abundant number, since it is smaller than the sum of its proper divisors (27325489996).

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

12940015284 is a wasteful number, since it uses less digits than its factorization.

12940015284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62930 (or 62925 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 12940015284 in words is "twelve billion, nine hundred forty million, fifteen thousand, two hundred eighty-four".