39423532394 has 8 divisors (see below), whose sum is σ = 59847772320. Its totient is φ = 19474274956.

The previous prime is 39423532387. The next prime is 39423532399. The reversal of 39423532394 is 49323532493.

It is a happy number.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39423532399) 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, 118745414 + ... + 118745745.

It is an arithmetic number, because the mean of its divisors is an integer number (7480971540).

Almost surely, 2^39423532394 is an apocalyptic number.

39423532394 is a deficient number, since it is larger than the sum of its proper divisors (20424239926).

39423532394 is a wasteful number, since it uses less digits than its factorization.

39423532394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237491244.

The product of its digits is 2099520, while the sum is 47.

Subtracting 39423532394 from its reverse (49323532493), we obtain a palindrome (9900000099).

The spelling of 39423532394 in words is "thirty-nine billion, four hundred twenty-three million, five hundred thirty-two thousand, three hundred ninety-four".