3240187493 has 4 divisors (see below), whose sum is σ = 3271645728. Its totient is φ = 3208729260.

The previous prime is 3240187459. The next prime is 3240187523. The reversal of 3240187493 is 3947810423.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3240187493 - 2¹⁸ = 3239925349 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 3240187493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3240187393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15728963 + ... + 15729168.

It is an arithmetic number, because the mean of its divisors is an integer number (817911432).

Almost surely, 2^3240187493 is an apocalyptic number.

It is an amenable number.

3240187493 is a deficient number, since it is larger than the sum of its proper divisors (31458235).

3240187493 is a wasteful number, since it uses less digits than its factorization.

3240187493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31458234.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 3240187493 is about 56922.6448173308. The cubic root of 3240187493 is about 1479.7557871033.

The spelling of 3240187493 in words is "three billion, two hundred forty million, one hundred eighty-seven thousand, four hundred ninety-three".