1739940345 has 120 divisors (see below), whose sum is σ = 3686012352. Its totient is φ = 778377600.

The previous prime is 1739940337. The next prime is 1739940383. The reversal of 1739940345 is 5430499371.

It is not a de Polignac number, because 1739940345 - 2³ = 1739940337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1739940345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 751740 + ... + 754050.

Almost surely, 2^1739940345 is an apocalyptic number.

1739940345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1739940345 is an abundant number, since it is smaller than the sum of its proper divisors (1946072007).

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

1739940345 is a wasteful number, since it uses less digits than its factorization.

1739940345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365 (or 2343 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 1739940345 is about 41712.5921635182. The cubic root of 1739940345 is about 1202.7576268077.

The spelling of 1739940345 in words is "one billion, seven hundred thirty-nine million, nine hundred forty thousand, three hundred forty-five".