38538738 has 96 divisors (see below), whose sum is σ = 101088000. Its totient is φ = 10378368.

The previous prime is 38538713. The next prime is 38538743. The reversal of 38538738 is 83783583.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 38538693 and 38538702.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 193563 + ... + 193761.

It is an arithmetic number, because the mean of its divisors is an integer number (1053000).

Almost surely, 2^38538738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38538738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50544000).

38538738 is an abundant number, since it is smaller than the sum of its proper divisors (62549262).

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

38538738 is a wasteful number, since it uses less digits than its factorization.

38538738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 293 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 38538738 is about 6207.9576351647. The cubic root of 38538738 is about 337.7788838917.

The spelling of 38538738 in words is "thirty-eight million, five hundred thirty-eight thousand, seven hundred thirty-eight".