1440762221142 has 64 divisors (see below), whose sum is σ = 3307044741120. Its totient is φ = 464470848000.

The previous prime is 1440762221137. The next prime is 1440762221177. The reversal of 1440762221142 is 2411222670441.

1440762221142 is a `hidden beast` number, since 1 + 4 + 4 + 0 + 7 + 622 + 21 + 1 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1440762221097 and 1440762221106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2411283 + ... + 2948865.

It is an arithmetic number, because the mean of its divisors is an integer number (51672574080).

Almost surely, 2^{1440762221142} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1440762221142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1653522370560).

1440762221142 is an abundant number, since it is smaller than the sum of its proper divisors (1866282519978).

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

1440762221142 is a wasteful number, since it uses less digits than its factorization.

1440762221142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539226 (or 539220 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

Adding to 1440762221142 its reverse (2411222670441), we get a palindrome (3851984891583).

The spelling of 1440762221142 in words is "one trillion, four hundred forty billion, seven hundred sixty-two million, two hundred twenty-one thousand, one hundred forty-two".