3943494600 has 96 divisors (see below), whose sum is σ = 12302992320. Its totient is φ = 1044875520.

The previous prime is 3943494563. The next prime is 3943494629. The reversal of 3943494600 is 64943493.

It is a super-2 number, since 2×3943494600² = 31102299320458320000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73269 + ... + 115131.

It is an arithmetic number, because the mean of its divisors is an integer number (128156170).

Almost surely, 2^3943494600 is an apocalyptic number.

3943494600 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3943494600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6151496160).

3943494600 is an abundant number, since it is smaller than the sum of its proper divisors (8359497720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3943494600 is a wasteful number, since it uses less digits than its factorization.

3943494600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42039 (or 42030 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 42.

The square root of 3943494600 is about 62797.2499397864. The cubic root of 3943494600 is about 1579.8908486259.

The spelling of 3943494600 in words is "three billion, nine hundred forty-three million, four hundred ninety-four thousand, six hundred".