4040946 has 48 divisors (see below), whose sum is σ = 10780224. Its totient is φ = 1065312.

The previous prime is 4040941. The next prime is 4040963. The reversal of 4040946 is 6490404.

It is not an unprimeable number, because it can be changed into a prime (4040941) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 405 + ... + 2871.

It is an arithmetic number, because the mean of its divisors is an integer number (224588).

Almost surely, 2^4040946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4040946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5390112).

4040946 is an abundant number, since it is smaller than the sum of its proper divisors (6739278).

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

4040946 is a wasteful number, since it uses less digits than its factorization.

4040946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495 (or 2492 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 4040946 is about 2010.2104367454. The cubic root of 4040946 is about 159.2799151396.

The spelling of 4040946 in words is "four million, forty thousand, nine hundred forty-six".