3949823158 has 8 divisors (see below), whose sum is σ = 5928539760. Its totient is φ = 1973643240.

The previous prime is 3949823117. The next prime is 3949823233. The reversal of 3949823158 is 8513289493.

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

It is a super-2 number, since 2×3949823158² = 31202205958946185928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630273 + ... + 636508.

It is an arithmetic number, because the mean of its divisors is an integer number (741067470).

Almost surely, 2^3949823158 is an apocalyptic number.

3949823158 is a deficient number, since it is larger than the sum of its proper divisors (1978716602).

3949823158 is a wasteful number, since it uses less digits than its factorization.

3949823158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268342.

The product of its digits is 1866240, while the sum is 52.

The square root of 3949823158 is about 62847.6185547233. The cubic root of 3949823158 is about 1580.7355382663.

The spelling of 3949823158 in words is "three billion, nine hundred forty-nine million, eight hundred twenty-three thousand, one hundred fifty-eight".