1940007343 has 8 divisors (see below), whose sum is σ = 2062653120. Its totient is φ = 1818309120.

The previous prime is 1940007323. The next prime is 1940007353. The reversal of 1940007343 is 3437000491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1940007343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940007313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232663 + ... + 240856.

It is an arithmetic number, because the mean of its divisors is an integer number (257831640).

Almost surely, 2^1940007343 is an apocalyptic number.

1940007343 is a deficient number, since it is larger than the sum of its proper divisors (122645777).

1940007343 is a wasteful number, since it uses less digits than its factorization.

1940007343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473777.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 1940007343 is about 44045.5144481251. The cubic root of 1940007343 is about 1247.1952780413.

The spelling of 1940007343 in words is "one billion, nine hundred forty million, seven thousand, three hundred forty-three".