12056406240 has 48 divisors (see below), whose sum is σ = 37977681168. Its totient is φ = 3215041536.

The previous prime is 12056406233. The next prime is 12056406277. The reversal of 12056406240 is 4260465021.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12056406198 and 12056406207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12558277 + ... + 12559236.

It is an arithmetic number, because the mean of its divisors is an integer number (791201691).

Almost surely, 2^12056406240 is an apocalyptic number.

12056406240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12056406240 is an abundant number, since it is smaller than the sum of its proper divisors (25921274928).

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

12056406240 is a wasteful number, since it uses less digits than its factorization.

12056406240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25117531 (or 25117523 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 12056406240 in words is "twelve billion, fifty-six million, four hundred six thousand, two hundred forty".