4045518 has 32 divisors (see below), whose sum is σ = 9465600. Its totient is φ = 1277208.

The previous prime is 4045501. The next prime is 4045523. The reversal of 4045518 is 8155404.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 4045491 and 4045500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 946 + ... + 2997.

It is an arithmetic number, because the mean of its divisors is an integer number (295800).

Almost surely, 2^4045518 is an apocalyptic number.

4045518 is an abundant number, since it is smaller than the sum of its proper divisors (5420082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4045518 is a wasteful number, since it uses less digits than its factorization.

4045518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3973 (or 3967 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 4045518 is about 2011.3473096410. The cubic root of 4045518 is about 159.3399632324.

The spelling of 4045518 in words is "four million, forty-five thousand, five hundred eighteen".