1400421402240 has 256 divisors, whose sum is σ = 5103668736000. Its totient is φ = 319962451968.

The previous prime is 1400421402217. The next prime is 1400421402269. The reversal of 1400421402240 is 422041240041.

It is a super-2 number, since 2×1400421402240² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1400421402240.

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, 34103641 + ... + 34144679.

It is an arithmetic number, because the mean of its divisors is an integer number (19936206000).

Almost surely, 2^{1400421402240} is an apocalyptic number.

1400421402240 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 1400421402240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2551834368000).

1400421402240 is an abundant number, since it is smaller than the sum of its proper divisors (3703247333760).

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

1400421402240 is a wasteful number, since it uses less digits than its factorization.

1400421402240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43607 (or 43595 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 1400421402240 its reverse (422041240041), we get a palindrome (1822462642281).

The spelling of 1400421402240 in words is "one trillion, four hundred billion, four hundred twenty-one million, four hundred two thousand, two hundred forty".