3995152728 has 64 divisors (see below), whose sum is σ = 12086184960. Its totient is φ = 1074326016.

The previous prime is 3995152699. The next prime is 3995152741. The reversal of 3995152728 is 8272515993.

It is a super-2 number, since 2×3995152728² = 31922490640091683968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 696576 + ... + 702287.

It is an arithmetic number, because the mean of its divisors is an integer number (188846640).

Almost surely, 2^3995152728 is an apocalyptic number.

It is an amenable number.

3995152728 is an abundant number, since it is smaller than the sum of its proper divisors (8091032232).

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

3995152728 is a wasteful number, since it uses less digits than its factorization.

3995152728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398896 (or 1398892 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 51.

The square root of 3995152728 is about 63207.2205368975. The cubic root of 3995152728 is about 1586.7595790596.

The spelling of 3995152728 in words is "three billion, nine hundred ninety-five million, one hundred fifty-two thousand, seven hundred twenty-eight".