3886349490 has 128 divisors (see below), whose sum is σ = 10994227200. Its totient is φ = 974151360.

The previous prime is 3886349473. The next prime is 3886349527. The reversal of 3886349490 is 949436883.

It is a happy number.

3886349490 is a `hidden beast` number, since 3 + 8 + 8 + 63 + 494 + 90 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 669139 + ... + 674921.

It is an arithmetic number, because the mean of its divisors is an integer number (85892400).

Almost surely, 2^3886349490 is an apocalyptic number.

3886349490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3886349490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5497113600).

3886349490 is an abundant number, since it is smaller than the sum of its proper divisors (7107877710).

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

3886349490 is a wasteful number, since it uses less digits than its factorization.

3886349490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5949 (or 5943 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The square root of 3886349490 is about 62340.5926343342. The cubic root of 3886349490 is about 1572.2222968078. Note that the first 4 decimals are identical.

The spelling of 3886349490 in words is "three billion, eight hundred eighty-six million, three hundred forty-nine thousand, four hundred ninety".