3405240437 has 4 divisors (see below), whose sum is σ = 3605548716. Its totient is φ = 3204932160.

The previous prime is 3405240383. The next prime is 3405240451. The reversal of 3405240437 is 7340425043.

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 1404825361 + 2000415076 = 37481^2 + 44726^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3405240437 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 (3405240457) 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, 100154114 + ... + 100154147.

It is an arithmetic number, because the mean of its divisors is an integer number (901387179).

Almost surely, 2^3405240437 is an apocalyptic number.

It is an amenable number.

3405240437 is a deficient number, since it is larger than the sum of its proper divisors (200308279).

3405240437 is a wasteful number, since it uses less digits than its factorization.

3405240437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200308278.

The product of its (nonzero) digits is 40320, while the sum is 32.

The square root of 3405240437 is about 58354.4380231701. The cubic root of 3405240437 is about 1504.4667502990.

The spelling of 3405240437 in words is "three billion, four hundred five million, two hundred forty thousand, four hundred thirty-seven".