756140423 has 4 divisors (see below), whose sum is σ = 773725128. Its totient is φ = 738555720.

The previous prime is 756140419. The next prime is 756140443. The reversal of 756140423 is 324041657.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 756140423 - 2² = 756140419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 756140423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (756140443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8792288 + ... + 8792373.

It is an arithmetic number, because the mean of its divisors is an integer number (193431282).

Almost surely, 2^756140423 is an apocalyptic number.

756140423 is a deficient number, since it is larger than the sum of its proper divisors (17584705).

756140423 is a wasteful number, since it uses less digits than its factorization.

756140423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17584704.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 756140423 is about 27498.0076187349. The cubic root of 756140423 is about 911.0330911044.

The spelling of 756140423 in words is "seven hundred fifty-six million, one hundred forty thousand, four hundred twenty-three".