7320347405 has 12 divisors (see below), whose sum is σ = 10218607740. Its totient is φ = 5019666624.

The previous prime is 7320347401. The next prime is 7320347413. The reversal of 7320347405 is 5047430237.

It can be written as a sum of positive squares in 2 ways, for example, as 3040309321 + 4280038084 = 55139^2 + 65422^2 .

It is not a de Polignac number, because 7320347405 - 2² = 7320347401 is a prime.

It is a super-2 number, since 2×7320347405² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7320347401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14939240 + ... + 14939729.

It is an arithmetic number, because the mean of its divisors is an integer number (851550645).

Almost surely, 2^7320347405 is an apocalyptic number.

It is an amenable number.

7320347405 is a deficient number, since it is larger than the sum of its proper divisors (2898260335).

7320347405 is a wasteful number, since it uses less digits than its factorization.

7320347405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29878988 (or 29878981 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 35.

The square root of 7320347405 is about 85559.0287754600. The cubic root of 7320347405 is about 1941.6780928880.

The spelling of 7320347405 in words is "seven billion, three hundred twenty million, three hundred forty-seven thousand, four hundred five".