7340689493 has 4 divisors (see below), whose sum is σ = 7340878380. Its totient is φ = 7340500608.

The previous prime is 7340689483. The next prime is 7340689537. The reversal of 7340689493 is 3949860437.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5215295089 + 2125394404 = 72217^2 + 46102^2 .

It is a cyclic number.

It is not a de Polignac number, because 7340689493 - 2²² = 7336495189 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 (7340689483) 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, 12380 + ... + 121797.

It is an arithmetic number, because the mean of its divisors is an integer number (1835219595).

Almost surely, 2^7340689493 is an apocalyptic number.

It is an amenable number.

7340689493 is a deficient number, since it is larger than the sum of its proper divisors (188887).

7340689493 is a wasteful number, since it uses less digits than its factorization.

7340689493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188886.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The square root of 7340689493 is about 85677.8238110656. The cubic root of 7340689493 is about 1943.4749683090.

The spelling of 7340689493 in words is "seven billion, three hundred forty million, six hundred eighty-nine thousand, four hundred ninety-three".