39994046 has 4 divisors (see below), whose sum is σ = 59991072. Its totient is φ = 19997022.

The previous prime is 39994043. The next prime is 39994049. The reversal of 39994046 is 64049993.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64049993 = 7 ⋅9149999.

It is an interprime number because it is at equal distance from previous prime (39994043) and next prime (39994049).

It is a junction number, because it is equal to n+sod(n) for n = 39993988 and 39994006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39994043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9998510 + ... + 9998513.

It is an arithmetic number, because the mean of its divisors is an integer number (14997768).

Almost surely, 2^39994046 is an apocalyptic number.

39994046 is a deficient number, since it is larger than the sum of its proper divisors (19997026).

39994046 is a wasteful number, since it uses less digits than its factorization.

39994046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19997025.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 39994046 is about 6324.0845977896. The cubic root of 39994046 is about 341.9782198320.

The spelling of 39994046 in words is "thirty-nine million, nine hundred ninety-four thousand, forty-six".