39481994 has 8 divisors (see below), whose sum is σ = 59276448. Its totient is φ = 19723180.

The previous prime is 39481993. The next prime is 39482029. The reversal of 39481994 is 49918493.

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

It is not an unprimeable number, because it can be changed into a prime (39481993) 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, 5942 + ... + 10689.

It is an arithmetic number, because the mean of its divisors is an integer number (7409556).

Almost surely, 2^39481994 is an apocalyptic number.

39481994 is a deficient number, since it is larger than the sum of its proper divisors (19794454).

39481994 is a wasteful number, since it uses less digits than its factorization.

39481994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17820.

The product of its digits is 279936, while the sum is 47.

The square root of 39481994 is about 6283.4699012568. The cubic root of 39481994 is about 340.5124740000.

The spelling of 39481994 in words is "thirty-nine million, four hundred eighty-one thousand, nine hundred ninety-four".