40431075 has 36 divisors (see below), whose sum is σ = 69338568. Its totient is φ = 20787200.

The previous prime is 40431067. The next prime is 40431089. The reversal of 40431075 is 57013404.

It is not a de Polignac number, because 40431075 - 2³ = 40431067 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 62755 + ... + 63395.

Almost surely, 2^40431075 is an apocalyptic number.

40431075 is a deficient number, since it is larger than the sum of its proper divisors (28907493).

40431075 is a wasteful number, since it uses less digits than its factorization.

40431075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 40431075 is about 6358.5434652914. The cubic root of 40431075 is about 343.2193487415.

Adding to 40431075 its reverse (57013404), we get a palindrome (97444479).

The spelling of 40431075 in words is "forty million, four hundred thirty-one thousand, seventy-five".