3985378488 has 96 divisors (see below), whose sum is σ = 13284616800. Its totient is φ = 1051087104.

The previous prime is 3985378477. The next prime is 3985378511. The reversal of 3985378488 is 8848735893.

3985378488 is a `hidden beast` number, since 3 + 9 + 85 + 3 + 78 + 488 = 666.

It is a super-2 number, since 2×3985378488² = 31766483385226332288, 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 an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 297583 + ... + 310686.

It is an arithmetic number, because the mean of its divisors is an integer number (138381425).

Almost surely, 2^3985378488 is an apocalyptic number.

It is an amenable number.

3985378488 is an abundant number, since it is smaller than the sum of its proper divisors (9299238312).

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

3985378488 is a wasteful number, since it uses less digits than its factorization.

3985378488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608301 (or 608294 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 63.

The square root of 3985378488 is about 63129.8541737584. The cubic root of 3985378488 is about 1585.4645068189.

It can be divided in two parts, 39853 and 78488, that added together give a triangular number (118341 = T₄₈₆).

The spelling of 3985378488 in words is "three billion, nine hundred eighty-five million, three hundred seventy-eight thousand, four hundred eighty-eight".