1421274714240 has 128 divisors (see below), whose sum is σ = 4541076573120. Its totient is φ = 378106122240.

The previous prime is 1421274714229. The next prime is 1421274714247. The reversal of 1421274714240 is 424174721241.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (1421274714247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70834 + ... + 1687473.

Almost surely, 2^{1421274714240} is an apocalyptic number.

1421274714240 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 1421274714240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2270538286560).

1421274714240 is an abundant number, since it is smaller than the sum of its proper divisors (3119801858880).

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

1421274714240 is a wasteful number, since it uses less digits than its factorization.

1421274714240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758750 (or 1758738 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 39.

The spelling of 1421274714240 in words is "one trillion, four hundred twenty-one billion, two hundred seventy-four million, seven hundred fourteen thousand, two hundred forty".