39974389 has 8 divisors (see below), whose sum is σ = 49199360. Its totient is φ = 31628016.

The previous prime is 39974369. The next prime is 39974399. The reversal of 39974389 is 98347993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39974389 - 2¹³ = 39966197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39974359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219549 + ... + 219730.

It is an arithmetic number, because the mean of its divisors is an integer number (6149920).

Almost surely, 2^39974389 is an apocalyptic number.

It is an amenable number.

39974389 is a deficient number, since it is larger than the sum of its proper divisors (9224971).

39974389 is a wasteful number, since it uses less digits than its factorization.

39974389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439299.

The product of its digits is 1469664, while the sum is 52.

The square root of 39974389 is about 6322.5302688085. The cubic root of 39974389 is about 341.9221834286.

The spelling of 39974389 in words is "thirty-nine million, nine hundred seventy-four thousand, three hundred eighty-nine".