38493642 has 16 divisors (see below), whose sum is σ = 83986272. Its totient is φ = 11664720.

The previous prime is 38493641. The next prime is 38493649. The reversal of 38493642 is 24639483.

It is a self number, because there is not a number n which added to its sum of digits gives 38493642.

It is not an unprimeable number, because it can be changed into a prime (38493641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291553 + ... + 291684.

It is an arithmetic number, because the mean of its divisors is an integer number (5249142).

Almost surely, 2^38493642 is an apocalyptic number.

38493642 is an abundant number, since it is smaller than the sum of its proper divisors (45492630).

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

38493642 is a wasteful number, since it uses less digits than its factorization.

38493642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583253.

The product of its digits is 124416, while the sum is 39.

The square root of 38493642 is about 6204.3244596007. The cubic root of 38493642 is about 337.6470821202.

The spelling of 38493642 in words is "thirty-eight million, four hundred ninety-three thousand, six hundred forty-two".