39870441 has 16 divisors (see below), whose sum is σ = 63611520. Its totient is φ = 24535440.

The previous prime is 39870437. The next prime is 39870451. The reversal of 39870441 is 14407893.

It is a happy number.

It is not a de Polignac number, because 39870441 - 2² = 39870437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39870396 and 39870405.

It is not an unprimeable number, because it can be changed into a prime (39870401) 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, 56445 + ... + 57146.

It is an arithmetic number, because the mean of its divisors is an integer number (3975720).

Almost surely, 2^39870441 is an apocalyptic number.

It is an amenable number.

39870441 is a deficient number, since it is larger than the sum of its proper divisors (23741079).

39870441 is a wasteful number, since it uses less digits than its factorization.

39870441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113613 (or 113607 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 39870441 is about 6314.3044747620. The cubic root of 39870441 is about 341.6255520095.

The spelling of 39870441 in words is "thirty-nine million, eight hundred seventy thousand, four hundred forty-one".