38724878 has 8 divisors (see below), whose sum is σ = 61504272. Its totient is φ = 18223456.

The previous prime is 38724863. The next prime is 38724883. The reversal of 38724878 is 87842783.

It is a happy number.

38724878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×38724878² = 2999232352229768, which contains 22 as substring.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 569450 + ... + 569517.

It is an arithmetic number, because the mean of its divisors is an integer number (7688034).

Almost surely, 2^38724878 is an apocalyptic number.

38724878 is a deficient number, since it is larger than the sum of its proper divisors (22779394).

38724878 is a wasteful number, since it uses less digits than its factorization.

38724878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138986.

The product of its digits is 602112, while the sum is 47.

The square root of 38724878 is about 6222.9316242427. The cubic root of 38724878 is about 338.3218285512.

The spelling of 38724878 in words is "thirty-eight million, seven hundred twenty-four thousand, eight hundred seventy-eight".