3445185421 has 8 divisors (see below), whose sum is σ = 3458632320. Its totient is φ = 3431762208.

The previous prime is 3445185397. The next prime is 3445185437. The reversal of 3445185421 is 1245815443.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3445185421 - 2¹¹ = 3445183373 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 (3445185221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319500 + ... + 330106.

It is an arithmetic number, because the mean of its divisors is an integer number (432329040).

Almost surely, 2^3445185421 is an apocalyptic number.

It is an amenable number.

3445185421 is a deficient number, since it is larger than the sum of its proper divisors (13446899).

3445185421 is a wasteful number, since it uses less digits than its factorization.

3445185421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11843.

The product of its digits is 76800, while the sum is 37.

The square root of 3445185421 is about 58695.7018954540. The cubic root of 3445185421 is about 1510.3265847706.

The spelling of 3445185421 in words is "three billion, four hundred forty-five million, one hundred eighty-five thousand, four hundred twenty-one".