4045816 has 8 divisors (see below), whose sum is σ = 7585920. Its totient is φ = 2022904.

The previous prime is 4045787. The next prime is 4045817. The reversal of 4045816 is 6185404.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4045817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252856 + ... + 252871.

It is an arithmetic number, because the mean of its divisors is an integer number (948240).

Almost surely, 2^4045816 is an apocalyptic number.

It is an amenable number.

4045816 is a deficient number, since it is larger than the sum of its proper divisors (3540104).

4045816 is a wasteful number, since it uses less digits than its factorization.

4045816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505733 (or 505729 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 4045816 is about 2011.4213879742. The cubic root of 4045816 is about 159.3438755574.

The spelling of 4045816 in words is "four million, forty-five thousand, eight hundred sixteen".