38884590 has 64 divisors (see below), whose sum is σ = 105062400. Its totient is φ = 10232352.

The previous prime is 38884577. The next prime is 38884609. The reversal of 38884590 is 9548883.

38884590 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 2×38884590² = 3024022678936200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20419 + ... + 22241.

It is an arithmetic number, because the mean of its divisors is an integer number (1641600).

Almost surely, 2^38884590 is an apocalyptic number.

38884590 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 38884590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52531200).

38884590 is an abundant number, since it is smaller than the sum of its proper divisors (66177810).

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

38884590 is a wasteful number, since it uses less digits than its factorization.

38884590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918 (or 1912 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 38884590 is about 6235.7509571823. The cubic root of 38884590 is about 338.7863012163.

The spelling of 38884590 in words is "thirty-eight million, eight hundred eighty-four thousand, five hundred ninety".