4045050 has 72 divisors (see below), whose sum is σ = 11098620. Its totient is φ = 1056000.

The previous prime is 4045049. The next prime is 4045051. The reversal of 4045050 is 505404.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4045049) and next prime (4045051).

It can be written as a sum of positive squares in 6 ways, for example, as 1962801 + 2082249 = 1401^2 + 1443^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4045051) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 40000 + ... + 40100.

Almost surely, 2^4045050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4045050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5549310).

4045050 is an abundant number, since it is smaller than the sum of its proper divisors (7053570).

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

4045050 is a wasteful number, since it uses less digits than its factorization.

4045050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 4045050 is about 2011.2309663487. The cubic root of 4045050 is about 159.3338186564. Note that the first 3 decimals are identical.

The spelling of 4045050 in words is "four million, forty-five thousand, fifty".