40407575 has 24 divisors (see below), whose sum is σ = 54538176. Its totient is φ = 29520000.

The previous prime is 40407553. The next prime is 40407611. The reversal of 40407575 is 57570404.

It is not a de Polignac number, because 40407575 - 2¹⁶ = 40342039 is a prime.

It is a Duffinian number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 32210 + ... + 33440.

It is an arithmetic number, because the mean of its divisors is an integer number (2272424).

Almost surely, 2^40407575 is an apocalyptic number.

40407575 is a deficient number, since it is larger than the sum of its proper divisors (14130601).

40407575 is a wasteful number, since it uses less digits than its factorization.

40407575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355 (or 1350 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 40407575 is about 6356.6952892206. The cubic root of 40407575 is about 343.1528386963.

Adding to 40407575 its reverse (57570404), we get a palindrome (97977979).

The spelling of 40407575 in words is "forty million, four hundred seven thousand, five hundred seventy-five".