4242945 has 32 divisors (see below), whose sum is σ = 8218368. Its totient is φ = 1824768.

The previous prime is 4242941. The next prime is 4242983. The reversal of 4242945 is 5492424.

4242945 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 4242945 - 2² = 4242941 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4242941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 597 + ... + 2973.

It is an arithmetic number, because the mean of its divisors is an integer number (256824).

Almost surely, 2^4242945 is an apocalyptic number.

It is an amenable number.

4242945 is a deficient number, since it is larger than the sum of its proper divisors (3975423).

4242945 is a wasteful number, since it uses less digits than its factorization.

4242945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409.

The product of its digits is 11520, while the sum is 30.

The square root of 4242945 is about 2059.8410132823. The cubic root of 4242945 is about 161.8909111634.

The spelling of 4242945 in words is "four million, two hundred forty-two thousand, nine hundred forty-five".