40379845 has 32 divisors (see below), whose sum is σ = 58942080. Its totient is φ = 26173440.

The previous prime is 40379837. The next prime is 40379849. The reversal of 40379845 is 54897304.

It is not a de Polignac number, because 40379845 - 2³ = 40379837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40379798 and 40379807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40379849) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 16629 + ... + 18901.

It is an arithmetic number, because the mean of its divisors is an integer number (1841940).

Almost surely, 2^40379845 is an apocalyptic number.

It is an amenable number.

40379845 is a deficient number, since it is larger than the sum of its proper divisors (18562235).

40379845 is a wasteful number, since it uses less digits than its factorization.

40379845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 40379845 is about 6354.5137500835. The cubic root of 40379845 is about 343.0743236673.

The spelling of 40379845 in words is "forty million, three hundred seventy-nine thousand, eight hundred forty-five".