40440575 has 24 divisors (see below), whose sum is σ = 57674880. Its totient is φ = 27554400.

The previous prime is 40440571. The next prime is 40440583. The reversal of 40440575 is 57504404.

It is not a de Polignac number, because 40440575 - 2² = 40440571 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40440571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30680 + ... + 31970.

It is an arithmetic number, because the mean of its divisors is an integer number (2403120).

Almost surely, 2^40440575 is an apocalyptic number.

40440575 is a deficient number, since it is larger than the sum of its proper divisors (17234305).

40440575 is a wasteful number, since it uses less digits than its factorization.

40440575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487 (or 1482 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 40440575 is about 6359.2904478409. The cubic root of 40440575 is about 343.2462284660.

Adding to 40440575 its reverse (57504404), we get a palindrome (97944979).

The spelling of 40440575 in words is "forty million, four hundred forty thousand, five hundred seventy-five".