3995199936 has 392 divisors, whose sum is σ = 14645115744. Its totient is φ = 1052559360.

The previous prime is 3995199931. The next prime is 3995199979. The reversal of 3995199936 is 6399915993.

It is a super-2 number, since 2×3995199936² = 31923245057228808192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3995199931) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 4245226 + ... + 4246166.

Almost surely, 2^3995199936 is an apocalyptic number.

3995199936 is a gapful number since it is divisible by the number (36) 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 3995199936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7322557872).

3995199936 is an abundant number, since it is smaller than the sum of its proper divisors (10649915808).

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

3995199936 is an equidigital number, since it uses as much as digits as its factorization.

3995199936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 966 counting only the distinct ones).

The product of its digits is 15943230, while the sum is 63.

The square root of 3995199936 is about 63207.5939741421. The cubic root of 3995199936 is about 1586.7658289209.

The spelling of 3995199936 in words is "three billion, nine hundred ninety-five million, one hundred ninety-nine thousand, nine hundred thirty-six".