38384290 has 16 divisors (see below), whose sum is σ = 78962112. Its totient is φ = 13160304.

The previous prime is 38384273. The next prime is 38384299. The reversal of 38384290 is 9248383.

It is not an unprimeable number, because it can be changed into a prime (38384299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274104 + ... + 274243.

It is an arithmetic number, because the mean of its divisors is an integer number (4935132).

Almost surely, 2^38384290 is an apocalyptic number.

38384290 is an abundant number, since it is smaller than the sum of its proper divisors (40577822).

38384290 is a wasteful number, since it uses less digits than its factorization.

38384290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548361.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 38384290 is about 6195.5056290831. The cubic root of 38384290 is about 337.3270517646.

It can be divided in two parts, 3838 and 4290, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 38384290 in words is "thirty-eight million, three hundred eighty-four thousand, two hundred ninety".