40379689 has 4 divisors (see below), whose sum is σ = 46148224. Its totient is φ = 34611156.

The previous prime is 40379671. The next prime is 40379707. The reversal of 40379689 is 98697304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (40379671) and next prime (40379707).

It is a cyclic number.

It is not a de Polignac number, because 40379689 - 2⁵ = 40379657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40379609) 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, 2884257 + ... + 2884270.

It is an arithmetic number, because the mean of its divisors is an integer number (11537056).

Almost surely, 2^40379689 is an apocalyptic number.

It is an amenable number.

40379689 is a deficient number, since it is larger than the sum of its proper divisors (5768535).

40379689 is an equidigital number, since it uses as much as digits as its factorization.

40379689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5768534.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 40379689 is about 6354.5014753323. The cubic root of 40379689 is about 343.0738818655.

The spelling of 40379689 in words is "forty million, three hundred seventy-nine thousand, six hundred eighty-nine".