40375679 has 4 divisors (see below), whose sum is σ = 41234784. Its totient is φ = 39516576.

The previous prime is 40375669. The next prime is 40375721. The reversal of 40375679 is 97657304.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40375679 is a prime.

It is a super-2 number, since 2×40375679² = 3260390909422082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40375639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429482 + ... + 429575.

It is an arithmetic number, because the mean of its divisors is an integer number (10308696).

Almost surely, 2^40375679 is an apocalyptic number.

40375679 is a deficient number, since it is larger than the sum of its proper divisors (859105).

40375679 is an equidigital number, since it uses as much as digits as its factorization.

40375679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859104.

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 40375679 is about 6354.1859431402. The cubic root of 40375679 is about 343.0625249032.

The spelling of 40375679 in words is "forty million, three hundred seventy-five thousand, six hundred seventy-nine".