4245645 has 16 divisors (see below), whose sum is σ = 7151040. Its totient is φ = 2145024.

The previous prime is 4245643. The next prime is 4245679. The reversal of 4245645 is 5465424.

It is not a de Polignac number, because 4245645 - 2¹ = 4245643 is a prime.

It is a super-3 number, since 3×4245645³ (a number of 21 digits) contains 333 as substring.

4245645 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4245643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7164 + ... + 7733.

It is an arithmetic number, because the mean of its divisors is an integer number (446940).

Almost surely, 2^4245645 is an apocalyptic number.

It is an amenable number.

4245645 is a deficient number, since it is larger than the sum of its proper divisors (2905395).

4245645 is a wasteful number, since it uses less digits than its factorization.

4245645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14924.

The product of its digits is 19200, while the sum is 30.

The square root of 4245645 is about 2060.4962994386. The cubic root of 4245645 is about 161.9252436672.

The spelling of 4245645 in words is "four million, two hundred forty-five thousand, six hundred forty-five".