40861247 has 8 divisors (see below), whose sum is σ = 47652000. Its totient is φ = 35023632.

The previous prime is 40861237. The next prime is 40861253. The reversal of 40861247 is 74216804.

It is not a de Polignac number, because 40861247 - 2⁴ = 40861231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40861207) 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, 59222 + ... + 59907.

It is an arithmetic number, because the mean of its divisors is an integer number (5956500).

Almost surely, 2^40861247 is an apocalyptic number.

40861247 is a deficient number, since it is larger than the sum of its proper divisors (6790753).

40861247 is an equidigital number, since it uses as much as digits as its factorization.

40861247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119150 (or 119136 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 40861247 is about 6392.2802660709. The cubic root of 40861247 is about 344.4323002733.

The spelling of 40861247 in words is "forty million, eight hundred sixty-one thousand, two hundred forty-seven".