1742743321 has 16 divisors (see below), whose sum is σ = 2019427200. Its totient is φ = 1486362880.

The previous prime is 1742743279. The next prime is 1742743333. The reversal of 1742743321 is 1233472471.

It is a cyclic number.

It is not a de Polignac number, because 1742743321 - 2¹³ = 1742735129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1742743921) 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, 44580 + ... + 73978.

It is an arithmetic number, because the mean of its divisors is an integer number (126214200).

Almost surely, 2^1742743321 is an apocalyptic number.

1742743321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1742743321 is a deficient number, since it is larger than the sum of its proper divisors (276683879).

1742743321 is a wasteful number, since it uses less digits than its factorization.

1742743321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29744.

The product of its digits is 28224, while the sum is 34.

The square root of 1742743321 is about 41746.1773220016. The cubic root of 1742743321 is about 1203.4031454975.

The spelling of 1742743321 in words is "one billion, seven hundred forty-two million, seven hundred forty-three thousand, three hundred twenty-one".