39956241 has 16 divisors (see below), whose sum is σ = 59225600. Its totient is φ = 23794560.

The previous prime is 39956237. The next prime is 39956309. The reversal of 39956241 is 14265993.

It is not a de Polignac number, because 39956241 - 2² = 39956237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39956241.

It is not an unprimeable number, because it can be changed into a prime (39956141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15316 + ... + 17733.

It is an arithmetic number, because the mean of its divisors is an integer number (3701600).

Almost surely, 2^39956241 is an apocalyptic number.

39956241 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

39956241 is a deficient number, since it is larger than the sum of its proper divisors (19269359).

39956241 is a wasteful number, since it uses less digits than its factorization.

39956241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33096.

The product of its digits is 58320, while the sum is 39.

The square root of 39956241 is about 6321.0949209769. The cubic root of 39956241 is about 341.8704324349.

The spelling of 39956241 in words is "thirty-nine million, nine hundred fifty-six thousand, two hundred forty-one".