38447142 has 8 divisors (see below), whose sum is σ = 76894296. Its totient is φ = 12815712.

The previous prime is 38447137. The next prime is 38447153. The reversal of 38447142 is 24174483.

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

38447142 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3203923 + ... + 3203934.

It is an arithmetic number, because the mean of its divisors is an integer number (9611787).

Almost surely, 2^38447142 is an apocalyptic number.

38447142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

38447142 is a wasteful number, since it uses less digits than its factorization.

38447142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6407862.

The product of its digits is 21504, while the sum is 33.

The square root of 38447142 is about 6200.5759409913. The cubic root of 38447142 is about 337.5110690471.

The spelling of 38447142 in words is "thirty-eight million, four hundred forty-seven thousand, one hundred forty-two".