3940030300394 has 16 divisors (see below), whose sum is σ = 5976282283560. Its totient is φ = 1947986673600.

The previous prime is 3940030300357. The next prime is 3940030300399. The reversal of 3940030300394 is 4930030300493.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3191135640625 + 748894659769 = 1786375^2 + 865387^2 .

It is not an unprimeable number, because it can be changed into a prime (3940030300399) 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, 12460349 + ... + 12772640.

Almost surely, 2^{3940030300394} is an apocalyptic number.

3940030300394 is a deficient number, since it is larger than the sum of its proper divisors (2036251983166).

3940030300394 is a wasteful number, since it uses less digits than its factorization.

3940030300394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25233865.

The product of its (nonzero) digits is 104976, while the sum is 38.

Subtracting 3940030300394 from its reverse (4930030300493), we obtain a palindrome (990000000099).

It can be divided in two parts, 3940030 and 300394, that added together give a palindrome (4240424).

The spelling of 3940030300394 in words is "three trillion, nine hundred forty billion, thirty million, three hundred thousand, three hundred ninety-four".