38505726 has 128 divisors (see below), whose sum is σ = 105431040. Its totient is φ = 10178784.

The previous prime is 38505713. The next prime is 38505739. The reversal of 38505726 is 62750583.

38505726 is a `hidden beast` number, since 3 + 85 + 0 + 572 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (38505713) and next prime (38505739).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 373791 + ... + 373893.

It is an arithmetic number, because the mean of its divisors is an integer number (823680).

Almost surely, 2^38505726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38505726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52715520).

38505726 is an abundant number, since it is smaller than the sum of its proper divisors (66925314).

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

38505726 is a wasteful number, since it uses less digits than its factorization.

38505726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 38505726 is about 6205.2982200697. The cubic root of 38505726 is about 337.6824100363.

The spelling of 38505726 in words is "thirty-eight million, five hundred five thousand, seven hundred twenty-six".