4240545 has 8 divisors (see below), whose sum is σ = 6784896. Its totient is φ = 2261616.

The previous prime is 4240541. The next prime is 4240547. The reversal of 4240545 is 5450424.

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

It is not a de Polignac number, because 4240545 - 2² = 4240541 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4240541) 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, 141337 + ... + 141366.

It is an arithmetic number, because the mean of its divisors is an integer number (848112).

Almost surely, 2^4240545 is an apocalyptic number.

It is an amenable number.

4240545 is a deficient number, since it is larger than the sum of its proper divisors (2544351).

4240545 is a wasteful number, since it uses less digits than its factorization.

4240545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282711.

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

The square root of 4240545 is about 2059.2583616438. The cubic root of 4240545 is about 161.8603811527.

Adding to 4240545 its reverse (5450424), we get a palindrome (9690969).

The spelling of 4240545 in words is "four million, two hundred forty thousand, five hundred forty-five".