40691375 has 16 divisors (see below), whose sum is σ = 52425984. Its totient is φ = 31500000.

The previous prime is 40691363. The next prime is 40691383. The reversal of 40691375 is 57319604.

It is not a de Polignac number, because 40691375 - 2¹² = 40687279 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 1376 + ... + 9125.

It is an arithmetic number, because the mean of its divisors is an integer number (3276624).

Almost surely, 2^40691375 is an apocalyptic number.

40691375 is a deficient number, since it is larger than the sum of its proper divisors (11734609).

40691375 is a wasteful number, since it uses less digits than its factorization.

40691375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10547 (or 10537 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 40691375 is about 6378.9791503030. The cubic root of 40691375 is about 343.9543358126.

The spelling of 40691375 in words is "forty million, six hundred ninety-one thousand, three hundred seventy-five".