1400421432344 has 128 divisors (see below), whose sum is σ = 3039109632000. Its totient is φ = 598299724800.

The previous prime is 1400421432343. The next prime is 1400421432367. The reversal of 1400421432344 is 4432341240041.

It is a super-2 number, since 2×1400421432344² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1400421432344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400421432343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124222292 + ... + 124233564.

It is an arithmetic number, because the mean of its divisors is an integer number (23743044000).

Almost surely, 2^{1400421432344} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400421432344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1519554816000).

1400421432344 is an abundant number, since it is smaller than the sum of its proper divisors (1638688199656).

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

1400421432344 is a wasteful number, since it uses less digits than its factorization.

1400421432344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11889 (or 11885 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 1400421432344 its reverse (4432341240041), we get a palindrome (5832762672385).

The spelling of 1400421432344 in words is "one trillion, four hundred billion, four hundred twenty-one million, four hundred thirty-two thousand, three hundred forty-four".