39394424 has 8 divisors (see below), whose sum is σ = 73864560. Its totient is φ = 19697208.

The previous prime is 39394379. The next prime is 39394427. The reversal of 39394424 is 42449393.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39394427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2462144 + ... + 2462159.

It is an arithmetic number, because the mean of its divisors is an integer number (9233070).

Almost surely, 2^39394424 is an apocalyptic number.

It is an amenable number.

39394424 is a deficient number, since it is larger than the sum of its proper divisors (34470136).

39394424 is a wasteful number, since it uses less digits than its factorization.

39394424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4924309 (or 4924305 counting only the distinct ones).

The product of its digits is 93312, while the sum is 38.

The square root of 39394424 is about 6276.4977495415. The cubic root of 39394424 is about 340.2605384787.

The spelling of 39394424 in words is "thirty-nine million, three hundred ninety-four thousand, four hundred twenty-four".