38621842 has 16 divisors (see below), whose sum is σ = 67459392. Its totient is φ = 16239600.

The previous prime is 38621831. The next prime is 38621857. The reversal of 38621842 is 24812683.

It is a junction number, because it is equal to n+sod(n) for n = 38621798 and 38621807.

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 7 ways as a sum of consecutive naturals, for example, 25284 + ... + 26767.

It is an arithmetic number, because the mean of its divisors is an integer number (4216212).

Almost surely, 2^38621842 is an apocalyptic number.

38621842 is a deficient number, since it is larger than the sum of its proper divisors (28837550).

38621842 is a wasteful number, since it uses less digits than its factorization.

38621842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52113.

The product of its digits is 18432, while the sum is 34.

The square root of 38621842 is about 6214.6473753545. The cubic root of 38621842 is about 338.0215023143.

The spelling of 38621842 in words is "thirty-eight million, six hundred twenty-one thousand, eight hundred forty-two".