38144490 has 16 divisors (see below), whose sum is σ = 91546848. Its totient is φ = 10171856.

The previous prime is 38144489. The next prime is 38144497. The reversal of 38144490 is 9444183.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (38144497) 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, 635712 + ... + 635771.

It is an arithmetic number, because the mean of its divisors is an integer number (5721678).

Almost surely, 2^38144490 is an apocalyptic number.

38144490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38144490 is an abundant number, since it is smaller than the sum of its proper divisors (53402358).

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

38144490 is a wasteful number, since it uses less digits than its factorization.

38144490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271493.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 38144490 is about 6176.1225700272. The cubic root of 38144490 is about 336.6231173723.

The spelling of 38144490 in words is "thirty-eight million, one hundred forty-four thousand, four hundred ninety".