38448390 has 32 divisors (see below), whose sum is σ = 97705440. Its totient is φ = 9649664.

The previous prime is 38448383. The next prime is 38448391. The reversal of 38448390 is 9384483.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38448391) 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 15 ways as a sum of consecutive naturals, for example, 37185 + ... + 38204.

It is an arithmetic number, because the mean of its divisors is an integer number (3053295).

Almost surely, 2^38448390 is an apocalyptic number.

38448390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38448390 is an abundant number, since it is smaller than the sum of its proper divisors (59257050).

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

38448390 is a wasteful number, since it uses less digits than its factorization.

38448390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75416.

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

The square root of 38448390 is about 6200.6765759875. The cubic root of 38448390 is about 337.5147208943.

The spelling of 38448390 in words is "thirty-eight million, four hundred forty-eight thousand, three hundred ninety".