40159346 has 4 divisors (see below), whose sum is σ = 60239022. Its totient is φ = 20079672.

The previous prime is 40159337. The next prime is 40159349. The reversal of 40159346 is 64395104.

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

It can be written as a sum of positive squares in only one way, i.e., 39828721 + 330625 = 6311^2 + 575^2 .

It is a super-2 number, since 2×40159346² = 3225546142295432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40159349) 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 as a sum of consecutive naturals, namely, 10039835 + ... + 10039838.

Almost surely, 2^40159346 is an apocalyptic number.

40159346 is a deficient number, since it is larger than the sum of its proper divisors (20079676).

40159346 is a wasteful number, since it uses less digits than its factorization.

40159346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20079675.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 40159346 is about 6337.1402067494. The cubic root of 40159346 is about 342.4487173471.

The spelling of 40159346 in words is "forty million, one hundred fifty-nine thousand, three hundred forty-six".