40243641117440 has 144 divisors (see below), whose sum is σ = 98066879517600. Its totient is φ = 15818653433856.

The previous prime is 40243641117431. The next prime is 40243641117503. The reversal of 40243641117440 is 4471114634204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202974194 + ... + 203172366.

It is an arithmetic number, because the mean of its divisors is an integer number (681019996650).

Almost surely, 2^{40243641117440} is an apocalyptic number.

40243641117440 is a gapful number since it is divisible by the number (40) 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 40243641117440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49033439758800).

40243641117440 is an abundant number, since it is smaller than the sum of its proper divisors (57823238400160).

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

40243641117440 is a wasteful number, since it uses less digits than its factorization.

40243641117440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200942 (or 200928 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 41.

The spelling of 40243641117440 in words is "forty trillion, two hundred forty-three billion, six hundred forty-one million, one hundred seventeen thousand, four hundred forty".