1240054222440 has 512 divisors, whose sum is σ = 4186862784000. Its totient is φ = 291270819840.

The previous prime is 1240054222423. The next prime is 1240054222483. The reversal of 1240054222440 is 442224500421.

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 = 1240054222398 and 1240054222407.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3512901304 + ... + 3512901656.

It is an arithmetic number, because the mean of its divisors is an integer number (8177466375).

Almost surely, 2^{1240054222440} is an apocalyptic number.

1240054222440 is a gapful number since it is divisible by the number (10) 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 1240054222440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2093431392000).

1240054222440 is an abundant number, since it is smaller than the sum of its proper divisors (2946808561560).

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

1240054222440 is a wasteful number, since it uses less digits than its factorization.

1240054222440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 30.

Adding to 1240054222440 its reverse (442224500421), we get a palindrome (1682278722861).

The spelling of 1240054222440 in words is "one trillion, two hundred forty billion, fifty-four million, two hundred twenty-two thousand, four hundred forty".