40645250 has 32 divisors (see below), whose sum is σ = 76467456. Its totient is φ = 16177200.

The previous prime is 40645229. The next prime is 40645261. The reversal of 40645250 is 5254604.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91529 + ... + 91971.

It is an arithmetic number, because the mean of its divisors is an integer number (2389608).

Almost surely, 2^40645250 is an apocalyptic number.

40645250 is a deficient number, since it is larger than the sum of its proper divisors (35822206).

40645250 is a wasteful number, since it uses less digits than its factorization.

40645250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827 (or 817 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 40645250 is about 6375.3627347783. The cubic root of 40645250 is about 343.8243255260.

Adding to 40645250 its reverse (5254604), we get a palindrome (45899854).

The spelling of 40645250 in words is "forty million, six hundred forty-five thousand, two hundred fifty".