40442250 has 32 divisors (see below), whose sum is σ = 100945728. Its totient is φ = 10784400.

The previous prime is 40442243. The next prime is 40442273. The reversal of 40442250 is 5224404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26212 + ... + 27711.

It is an arithmetic number, because the mean of its divisors is an integer number (3154554).

Almost surely, 2^40442250 is an apocalyptic number.

40442250 is an abundant number, since it is smaller than the sum of its proper divisors (60503478).

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

40442250 is a wasteful number, since it uses less digits than its factorization.

40442250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53943 (or 53933 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 40442250 is about 6359.4221435599. The cubic root of 40442250 is about 343.2509673493.

Adding to 40442250 its reverse (5224404), we get a palindrome (45666654).

The spelling of 40442250 in words is "forty million, four hundred forty-two thousand, two hundred fifty".