4045340 has 24 divisors (see below), whose sum is σ = 9149280. Its totient is φ = 1493568.

The previous prime is 4045333. The next prime is 4045357. The reversal of 4045340 is 435404.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7520 + ... + 8039.

It is an arithmetic number, because the mean of its divisors is an integer number (381220).

Almost surely, 2^4045340 is an apocalyptic number.

It is an amenable number.

4045340 is an abundant number, since it is smaller than the sum of its proper divisors (5103940).

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

4045340 is a wasteful number, since it uses less digits than its factorization.

4045340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15581 (or 15579 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 4045340 is about 2011.3030602075. The cubic root of 4045340 is about 159.3376262486.

The spelling of 4045340 in words is "four million, forty-five thousand, three hundred forty".