12275724440 has 64 divisors (see below), whose sum is σ = 33227539200. Its totient is φ = 3987301248.

The previous prime is 12275724431. The next prime is 12275724449. The reversal of 12275724440 is 4442757221.

It is an interprime number because it is at equal distance from previous prime (12275724431) and next prime (12275724449).

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 12275724394 and 12275724403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12275724449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1148414 + ... + 1159053.

It is an arithmetic number, because the mean of its divisors is an integer number (519180300).

Almost surely, 2^12275724440 is an apocalyptic number.

12275724440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12275724440 is an abundant number, since it is smaller than the sum of its proper divisors (20951814760).

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

12275724440 is a wasteful number, since it uses less digits than its factorization.

12275724440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307504 (or 2307500 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 38.

The spelling of 12275724440 in words is "twelve billion, two hundred seventy-five million, seven hundred twenty-four thousand, four hundred forty".