40179545 has 8 divisors (see below), whose sum is σ = 55103424. Its totient is φ = 27551664.

The previous prime is 40179533. The next prime is 40179571. The reversal of 40179545 is 54597104.

40179545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40179545 - 2²⁰ = 39130969 is a prime.

It is a super-2 number, since 2×40179545² = 3228791672814050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 1147987 = 40179545 / (4 + 0 + 1 + 7 + 9 + 5 + 4 + 5).

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573959 + ... + 574028.

It is an arithmetic number, because the mean of its divisors is an integer number (6887928).

Almost surely, 2^40179545 is an apocalyptic number.

It is an amenable number.

40179545 is a deficient number, since it is larger than the sum of its proper divisors (14923879).

40179545 is a wasteful number, since it uses less digits than its factorization.

40179545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147999.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 40179545 is about 6338.7337063486. The cubic root of 40179545 is about 342.5061216872.

The spelling of 40179545 in words is "forty million, one hundred seventy-nine thousand, five hundred forty-five".