320353743 has 8 divisors (see below), whose sum is σ = 427360000. Its totient is φ = 213458328.

The previous prime is 320353727. The next prime is 320353799. The reversal of 320353743 is 347353023.

It is a happy number.

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

It is not a de Polignac number, because 320353743 - 2⁴ = 320353727 is a prime.

It is a super-2 number, since 2×320353743² = 205253041308220098, which contains 22 as substring.

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 320353743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320353723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20713 + ... + 32706.

It is an arithmetic number, because the mean of its divisors is an integer number (53420000).

Almost surely, 2^320353743 is an apocalyptic number.

320353743 is a deficient number, since it is larger than the sum of its proper divisors (107006257).

320353743 is a wasteful number, since it uses less digits than its factorization.

320353743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55421.

The product of its (nonzero) digits is 22680, while the sum is 30.

The square root of 320353743 is about 17898.4285064360. The cubic root of 320353743 is about 684.2423241982.

It can be divided in two parts, 32035 and 3743, that added together give a triangular number (35778 = T₂₆₇).

The spelling of 320353743 in words is "three hundred twenty million, three hundred fifty-three thousand, seven hundred forty-three".