38561138 has 24 divisors (see below), whose sum is σ = 73404144. Its totient is φ = 15023400.

The previous prime is 38561129. The next prime is 38561143. The reversal of 38561138 is 83116583.

It is a super-2 number, since 2×38561138² = 2973922727710088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38561098 and 38561107.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16808 + ... + 18963.

It is an arithmetic number, because the mean of its divisors is an integer number (3058506).

Almost surely, 2^38561138 is an apocalyptic number.

38561138 is a deficient number, since it is larger than the sum of its proper divisors (34843006).

38561138 is a wasteful number, since it uses less digits than its factorization.

38561138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35798 (or 35791 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 38561138 is about 6209.7615091081. The cubic root of 38561138 is about 337.8443140013.

It can be divided in two parts, 3856 and 1138, that added together give a palindrome (4994).

The spelling of 38561138 in words is "thirty-eight million, five hundred sixty-one thousand, one hundred thirty-eight".