240814315493 has 4 divisors (see below), whose sum is σ = 241433375820. Its totient is φ = 240195255168.

The previous prime is 240814315471. The next prime is 240814315549. The reversal of 240814315493 is 394513418042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 394513418042 = 2 ⋅197256709021.

It can be written as a sum of positive squares in 2 ways, for example, as 40295744644 + 200518570849 = 200738^2 + 447793^2 .

It is a cyclic number.

It is not a de Polignac number, because 240814315493 - 2¹⁴ = 240814299109 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 (240814317493) 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, 309529580 + ... + 309530357.

It is an arithmetic number, because the mean of its divisors is an integer number (60358343955).

Almost surely, 2^240814315493 is an apocalyptic number.

It is an amenable number.

240814315493 is a deficient number, since it is larger than the sum of its proper divisors (619060327).

240814315493 is an equidigital number, since it uses as much as digits as its factorization.

240814315493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619060326.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 240814315493 in words is "two hundred forty billion, eight hundred fourteen million, three hundred fifteen thousand, four hundred ninety-three".