4045507 has 4 divisors (see below), whose sum is σ = 4283496. Its totient is φ = 3807520.

The previous prime is 4045501. The next prime is 4045523. The reversal of 4045507 is 7055404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4045507 is a prime.

It is a super-3 number, since 3×4045507³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

It is a Duffinian number.

4045507 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4045501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118969 + ... + 119002.

It is an arithmetic number, because the mean of its divisors is an integer number (1070874).

Almost surely, 2^4045507 is an apocalyptic number.

4045507 is a deficient number, since it is larger than the sum of its proper divisors (237989).

4045507 is a wasteful number, since it uses less digits than its factorization.

4045507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237988.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 4045507 is about 2011.3445751536. The cubic root of 4045507 is about 159.3398188140.

The spelling of 4045507 in words is "four million, forty-five thousand, five hundred seven".