1742420568440 has 32 divisors (see below), whose sum is σ = 3920753216160. Its totient is φ = 696913660800.

The previous prime is 1742420568431. The next prime is 1742420568461. The reversal of 1742420568440 is 448650242471.

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, 1185956 + ... + 2211635.

It is an arithmetic number, because the mean of its divisors is an integer number (122523538005).

Almost surely, 2^{1742420568440} is an apocalyptic number.

1742420568440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1742420568440 is an abundant number, since it is smaller than the sum of its proper divisors (2178332647720).

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

1742420568440 is a wasteful number, since it uses less digits than its factorization.

1742420568440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410423 (or 3410419 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 47.

The spelling of 1742420568440 in words is "one trillion, seven hundred forty-two billion, four hundred twenty million, five hundred sixty-eight thousand, four hundred forty".