39941145 has 12 divisors (see below), whose sum is σ = 69231396. Its totient is φ = 21301920.

The previous prime is 39941137. The next prime is 39941189. The reversal of 39941145 is 54114993.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19474569 + 20466576 = 4413^2 + 4524^2 .

It is not a de Polignac number, because 39941145 - 2³ = 39941137 is a prime.

It is a super-2 number, since 2×39941145² = 3190590127822050, which contains 22 as substring.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 443746 + ... + 443835.

It is an arithmetic number, because the mean of its divisors is an integer number (5769283).

Almost surely, 2^39941145 is an apocalyptic number.

It is an amenable number.

39941145 is a deficient number, since it is larger than the sum of its proper divisors (29290251).

39941145 is a wasteful number, since it uses less digits than its factorization.

39941145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887592 (or 887589 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 39941145 is about 6319.9007112454. The cubic root of 39941145 is about 341.8273726107.

The spelling of 39941145 in words is "thirty-nine million, nine hundred forty-one thousand, one hundred forty-five".