4245405 has 8 divisors (see below), whose sum is σ = 6792672. Its totient is φ = 2264208.

The previous prime is 4245361. The next prime is 4245407. The reversal of 4245405 is 5045424.

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

It is not a de Polignac number, because 4245405 - 2⁸ = 4245149 is a prime.

It is a super-2 number, since 2×4245405² = 36046927228050, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4245407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141499 + ... + 141528.

It is an arithmetic number, because the mean of its divisors is an integer number (849084).

Almost surely, 2^4245405 is an apocalyptic number.

It is an amenable number.

4245405 is a deficient number, since it is larger than the sum of its proper divisors (2547267).

4245405 is a wasteful number, since it uses less digits than its factorization.

4245405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283035.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 4245405 is about 2060.4380602192. The cubic root of 4245405 is about 161.9221924786.

The spelling of 4245405 in words is "four million, two hundred forty-five thousand, four hundred five".