3420345437 has 4 divisors (see below), whose sum is σ = 3420505536. Its totient is φ = 3420185340.

The previous prime is 3420345403. The next prime is 3420345449. The reversal of 3420345437 is 7345430243.

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 a de Polignac number, because none of the positive numbers 2^k-3420345437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3420345397 and 3420345406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420345037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41963 + ... + 92744.

It is an arithmetic number, because the mean of its divisors is an integer number (855126384).

Almost surely, 2^3420345437 is an apocalyptic number.

It is an amenable number.

3420345437 is a deficient number, since it is larger than the sum of its proper divisors (160099).

3420345437 is a wasteful number, since it uses less digits than its factorization.

3420345437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160098.

The product of its (nonzero) digits is 120960, while the sum is 35.

The square root of 3420345437 is about 58483.7194183133. The cubic root of 3420345437 is about 1506.6879788266.

The spelling of 3420345437 in words is "three billion, four hundred twenty million, three hundred forty-five thousand, four hundred thirty-seven".