38556486 has 60 divisors (see below), whose sum is σ = 89793132. Its totient is φ = 12365136.

The previous prime is 38556481. The next prime is 38556521. The reversal of 38556486 is 68465583.

38556486 is a `hidden beast` number, since 3 + 8 + 5 + 564 + 86 = 666.

It is a super-2 number, since 2×38556486² = 2973205225336392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38556481) 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 29 ways as a sum of consecutive naturals, for example, 136101 + ... + 136383.

Almost surely, 2^38556486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38556486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44896566).

38556486 is an abundant number, since it is smaller than the sum of its proper divisors (51236646).

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

38556486 is a wasteful number, since it uses less digits than its factorization.

38556486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355 (or 317 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 38556486 is about 6209.3869262593. The cubic root of 38556486 is about 337.8307276548.

The spelling of 38556486 in words is "thirty-eight million, five hundred fifty-six thousand, four hundred eighty-six".