38939430 has 32 divisors (see below), whose sum is σ = 93744864. Its totient is φ = 10351616.

The previous prime is 38939419. The next prime is 38939443. The reversal of 38939430 is 3493983.

It is a congruent number.

It is an unprimeable number.

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, 8752 + ... + 12428.

It is an arithmetic number, because the mean of its divisors is an integer number (2929527).

Almost surely, 2^38939430 is an apocalyptic number.

38939430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38939430 is an abundant number, since it is smaller than the sum of its proper divisors (54805434).

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

38939430 is a wasteful number, since it uses less digits than its factorization.

38939430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 38939430 is about 6240.1466328925. The cubic root of 38939430 is about 338.9454929289.

The spelling of 38939430 in words is "thirty-eight million, nine hundred thirty-nine thousand, four hundred thirty".