38981042 has 4 divisors (see below), whose sum is σ = 58471566. Its totient is φ = 19490520.

The previous prime is 38981039. The next prime is 38981057. The reversal of 38981042 is 24018983.

It is a happy number.

38981042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 31685641 + 7295401 = 5629^2 + 2701^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38980993 and 38981011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9745259 + ... + 9745262.

Almost surely, 2^38981042 is an apocalyptic number.

38981042 is a deficient number, since it is larger than the sum of its proper divisors (19490524).

38981042 is a wasteful number, since it uses less digits than its factorization.

38981042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19490523.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 38981042 is about 6243.4799591254. The cubic root of 38981042 is about 339.0661861761.

The spelling of 38981042 in words is "thirty-eight million, nine hundred eighty-one thousand, forty-two".