3738887646 has 16 divisors (see below), whose sum is σ = 8052988944. Its totient is φ = 1150426944.

The previous prime is 3738887627. The next prime is 3738887651. The reversal of 3738887646 is 6467888373.

It is a super-2 number, since 2×3738887646² = 27958561658822842632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3738887646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23967151 + ... + 23967306.

It is an arithmetic number, because the mean of its divisors is an integer number (503311809).

Almost surely, 2^3738887646 is an apocalyptic number.

3738887646 is an abundant number, since it is smaller than the sum of its proper divisors (4314101298).

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

3738887646 is a wasteful number, since it uses less digits than its factorization.

3738887646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47934475.

The product of its digits is 32514048, while the sum is 60.

The square root of 3738887646 is about 61146.4442629332. Note that the first 3 decimals coincide. The cubic root of 3738887646 is about 1552.0801271979.

The spelling of 3738887646 in words is "three billion, seven hundred thirty-eight million, eight hundred eighty-seven thousand, six hundred forty-six".