3242643437 has 4 divisors (see below), whose sum is σ = 3537429216. Its totient is φ = 2947857660.

The previous prime is 3242643433. The next prime is 3242643451. The reversal of 3242643437 is 7343462423.

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 not a de Polignac number, because 3242643437 - 2² = 3242643433 is a prime.

It is a super-3 number, since 3×3242643437³ (a number of 30 digits) contains 333 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 3242643437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3242643433) 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, 147392873 + ... + 147392894.

It is an arithmetic number, because the mean of its divisors is an integer number (884357304).

Almost surely, 2^3242643437 is an apocalyptic number.

It is an amenable number.

3242643437 is a deficient number, since it is larger than the sum of its proper divisors (294785779).

3242643437 is a wasteful number, since it uses less digits than its factorization.

3242643437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294785778.

The product of its digits is 290304, while the sum is 38.

The square root of 3242643437 is about 56944.2133758997. The cubic root of 3242643437 is about 1480.1295596648.

The spelling of 3242643437 in words is "three billion, two hundred forty-two million, six hundred forty-three thousand, four hundred thirty-seven".