40161146 has 4 divisors (see below), whose sum is σ = 60241722. Its totient is φ = 20080572.

The previous prime is 40161113. The next prime is 40161167. The reversal of 40161146 is 64116104.

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., 34939921 + 5221225 = 5911^2 + 2285^2 .

It is a super-2 number, since 2×40161146² = 3225835296066632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10040285 + ... + 10040288.

Almost surely, 2^40161146 is an apocalyptic number.

40161146 is a deficient number, since it is larger than the sum of its proper divisors (20080576).

40161146 is a wasteful number, since it uses less digits than its factorization.

40161146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20080575.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 40161146 is about 6337.2822250552. The cubic root of 40161146 is about 342.4538336197.

The spelling of 40161146 in words is "forty million, one hundred sixty-one thousand, one hundred forty-six".