39478141 has 4 divisors (see below), whose sum is σ = 39628512. Its totient is φ = 39327772.

The previous prime is 39478129. The next prime is 39478147. The reversal of 39478141 is 14187493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39478141 - 2⁷ = 39478013 is a prime.

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 39478141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39478147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74791 + ... + 75316.

It is an arithmetic number, because the mean of its divisors is an integer number (9907128).

Almost surely, 2^39478141 is an apocalyptic number.

It is an amenable number.

39478141 is a deficient number, since it is larger than the sum of its proper divisors (150371).

39478141 is a wasteful number, since it uses less digits than its factorization.

39478141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150370.

The product of its digits is 24192, while the sum is 37.

The square root of 39478141 is about 6283.1632956656. The cubic root of 39478141 is about 340.5013969063.

The spelling of 39478141 in words is "thirty-nine million, four hundred seventy-eight thousand, one hundred forty-one".