12295454940 has 72 divisors (see below), whose sum is σ = 38677569840. Its totient is φ = 3278786688.

The previous prime is 12295454939. The next prime is 12295454953. The reversal of 12295454940 is 4945459221.

12295454940 is a `hidden beast` number, since 1 + 2 + 29 + 545 + 49 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1260105 + ... + 1269824.

It is an arithmetic number, because the mean of its divisors is an integer number (537188470).

Almost surely, 2^12295454940 is an apocalyptic number.

12295454940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12295454940 is an abundant number, since it is smaller than the sum of its proper divisors (26382114900).

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

12295454940 is a wasteful number, since it uses less digits than its factorization.

12295454940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2529953 (or 2529939 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 12295454940 in words is "twelve billion, two hundred ninety-five million, four hundred fifty-four thousand, nine hundred forty".