123246074440 has 32 divisors (see below), whose sum is σ = 277515953280. Its totient is φ = 49260690112.

The previous prime is 123246074431. The next prime is 123246074459. The reversal of 123246074440 is 44470642321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 123246074440.

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, 1126432 + ... + 1230991.

It is an arithmetic number, because the mean of its divisors is an integer number (8672373540).

Almost surely, 2^123246074440 is an apocalyptic number.

123246074440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123246074440 is an abundant number, since it is smaller than the sum of its proper divisors (154269878840).

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

123246074440 is a wasteful number, since it uses less digits than its factorization.

123246074440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2358741 (or 2358737 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 37.

The spelling of 123246074440 in words is "one hundred twenty-three billion, two hundred forty-six million, seventy-four thousand, four hundred forty".