3985742488 has 32 divisors (see below), whose sum is σ = 9197868960. Its totient is φ = 1576776960.

The previous prime is 3985742477. The next prime is 3985742489. The reversal of 3985742488 is 8842475893.

It is a happy number.

3985742488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3985742488² = 31772286361296860288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985742489) 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, 2736733 + ... + 2738188.

It is an arithmetic number, because the mean of its divisors is an integer number (287433405).

Almost surely, 2^3985742488 is an apocalyptic number.

It is an amenable number.

3985742488 is an abundant number, since it is smaller than the sum of its proper divisors (5212126472).

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

3985742488 is a wasteful number, since it uses less digits than its factorization.

3985742488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5474947 (or 5474943 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 58.

The square root of 3985742488 is about 63132.7370545583. The cubic root of 3985742488 is about 1585.5127742138.

The spelling of 3985742488 in words is "three billion, nine hundred eighty-five million, seven hundred forty-two thousand, four hundred eighty-eight".