40547842 has 8 divisors (see below), whose sum is σ = 61128000. Its totient is φ = 20171844.

The previous prime is 40547821. The next prime is 40547861. The reversal of 40547842 is 24874504.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 40547798 and 40547807.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 50542 + ... + 51337.

It is an arithmetic number, because the mean of its divisors is an integer number (7641000).

Almost surely, 2^40547842 is an apocalyptic number.

40547842 is a deficient number, since it is larger than the sum of its proper divisors (20580158).

40547842 is a wasteful number, since it uses less digits than its factorization.

40547842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102080.

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 40547842 is about 6367.7187437889. The cubic root of 40547842 is about 343.5494428115.

The spelling of 40547842 in words is "forty million, five hundred forty-seven thousand, eight hundred forty-two".