40113946 has 4 divisors (see below), whose sum is σ = 60170922. Its totient is φ = 20056972.

The previous prime is 40113943. The next prime is 40113947. The reversal of 40113946 is 64931104.

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., 20657025 + 19456921 = 4545^2 + 4411^2 .

It is not an unprimeable number, because it can be changed into a prime (40113943) 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, 10028485 + ... + 10028488.

Almost surely, 2^40113946 is an apocalyptic number.

40113946 is a deficient number, since it is larger than the sum of its proper divisors (20056976).

40113946 is a wasteful number, since it uses less digits than its factorization.

40113946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20056975.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 40113946 is about 6333.5571363966. The cubic root of 40113946 is about 342.3196229961.

The spelling of 40113946 in words is "forty million, one hundred thirteen thousand, nine hundred forty-six".