38442136 has 8 divisors (see below), whose sum is σ = 72079020. Its totient is φ = 19221064.

The previous prime is 38442113. The next prime is 38442137. The reversal of 38442136 is 63124483.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 38442098 and 38442107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38442137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2402626 + ... + 2402641.

Almost surely, 2^38442136 is an apocalyptic number.

It is an amenable number.

38442136 is a deficient number, since it is larger than the sum of its proper divisors (33636884).

38442136 is a wasteful number, since it uses less digits than its factorization.

38442136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805273 (or 4805269 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 38442136 is about 6200.1722556716. The cubic root of 38442136 is about 337.4964198980.

The spelling of 38442136 in words is "thirty-eight million, four hundred forty-two thousand, one hundred thirty-six".