38705238 has 72 divisors (see below), whose sum is σ = 99341424. Its totient is φ = 10818720.

The previous prime is 38705201. The next prime is 38705263. The reversal of 38705238 is 83250783.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 27631 + ... + 28997.

It is an arithmetic number, because the mean of its divisors is an integer number (1379742).

Almost surely, 2^38705238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38705238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49670712).

38705238 is an abundant number, since it is smaller than the sum of its proper divisors (60636186).

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

38705238 is a wasteful number, since it uses less digits than its factorization.

38705238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410 (or 1396 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 38705238 is about 6221.3533897376. The cubic root of 38705238 is about 338.2646235994.

The spelling of 38705238 in words is "thirty-eight million, seven hundred five thousand, two hundred thirty-eight".