38384490 has 16 divisors (see below), whose sum is σ = 92122848. Its totient is φ = 10235856.

The previous prime is 38384483. The next prime is 38384497. The reversal of 38384490 is 9448383.

38384490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (38384483) and next prime (38384497).

It is not an unprimeable number, because it can be changed into a prime (38384497) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 639712 + ... + 639771.

It is an arithmetic number, because the mean of its divisors is an integer number (5757678).

Almost surely, 2^38384490 is an apocalyptic number.

38384490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38384490 is an abundant number, since it is smaller than the sum of its proper divisors (53738358).

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

38384490 is a wasteful number, since it uses less digits than its factorization.

38384490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279493.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 38384490 is about 6195.5217697947. The cubic root of 38384490 is about 337.3276376405.

The spelling of 38384490 in words is "thirty-eight million, three hundred eighty-four thousand, four hundred ninety".