1420442644340 has 24 divisors (see below), whose sum is σ = 2983898480640. Its totient is φ = 567992500128.

The previous prime is 1420442644319. The next prime is 1420442644391. The reversal of 1420442644340 is 434462440241.

It is a super-2 number, since 2×1420442644340² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1420442644294 and 1420442644303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11471732 + ... + 11594891.

It is an arithmetic number, because the mean of its divisors is an integer number (124329103360).

Almost surely, 2^{1420442644340} is an apocalyptic number.

1420442644340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1420442644340 is an abundant number, since it is smaller than the sum of its proper divisors (1563455836300).

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

1420442644340 is a wasteful number, since it uses less digits than its factorization.

1420442644340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23069711 (or 23069709 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 38.

The spelling of 1420442644340 in words is "one trillion, four hundred twenty billion, four hundred forty-two million, six hundred forty-four thousand, three hundred forty".