40361947 has 8 divisors (see below), whose sum is σ = 42645200. Its totient is φ = 38094624.

The previous prime is 40361911. The next prime is 40361953. The reversal of 40361947 is 74916304.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40361947 - 2¹¹ = 40359899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40361747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1429 + ... + 9097.

It is an arithmetic number, because the mean of its divisors is an integer number (5330650).

Almost surely, 2^40361947 is an apocalyptic number.

40361947 is a deficient number, since it is larger than the sum of its proper divisors (2283253).

40361947 is a wasteful number, since it uses less digits than its factorization.

40361947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7965.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 40361947 is about 6353.1053037078. The cubic root of 40361947 is about 343.0236279824.

The spelling of 40361947 in words is "forty million, three hundred sixty-one thousand, nine hundred forty-seven".