3994944015 has 8 divisors (see below), whose sum is σ = 6391910448. Its totient is φ = 2130636800.

The previous prime is 3994944011. The next prime is 3994944049. The reversal of 3994944015 is 5104494993.

It is a happy number.

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

It is not a de Polignac number, because 3994944015 - 2² = 3994944011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3994944011) 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, 133164786 + ... + 133164815.

It is an arithmetic number, because the mean of its divisors is an integer number (798988806).

Almost surely, 2^3994944015 is an apocalyptic number.

3994944015 is a deficient number, since it is larger than the sum of its proper divisors (2396966433).

3994944015 is a wasteful number, since it uses less digits than its factorization.

3994944015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266329609.

The product of its (nonzero) digits is 699840, while the sum is 48.

The square root of 3994944015 is about 63205.5694935185. The cubic root of 3994944015 is about 1586.7319469813.

The spelling of 3994944015 in words is "three billion, nine hundred ninety-four million, nine hundred forty-four thousand, fifteen".