40044250 has 32 divisors (see below), whose sum is σ = 77395968. Its totient is φ = 15498000.

The previous prime is 40044247. The next prime is 40044253. The reversal of 40044250 is 5244004.

It is an interprime number because it is at equal distance from previous prime (40044247) and next prime (40044253).

It is not an unprimeable number, because it can be changed into a prime (40044253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5167 + ... + 10333.

It is an arithmetic number, because the mean of its divisors is an integer number (2418624).

Almost surely, 2^40044250 is an apocalyptic number.

40044250 is the 5167-th pentagonal number.

40044250 is a deficient number, since it is larger than the sum of its proper divisors (37351718).

40044250 is a wasteful number, since it uses less digits than its factorization.

40044250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5215 (or 5205 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 40044250 is about 6328.0526230429. The cubic root of 40044250 is about 342.1212535866.

Adding to 40044250 its reverse (5244004), we get a palindrome (45288254).

The spelling of 40044250 in words is "forty million, forty-four thousand, two hundred fifty".