38847072 has 48 divisors (see below), whose sum is σ = 111246912. Its totient is φ = 11771520.

The previous prime is 38847059. The next prime is 38847079. The reversal of 38847072 is 27074883.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 38847072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38847079) 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, 17338 + ... + 19449.

It is an arithmetic number, because the mean of its divisors is an integer number (2317644).

Almost surely, 2^38847072 is an apocalyptic number.

38847072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38847072 is an abundant number, since it is smaller than the sum of its proper divisors (72399840).

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

38847072 is a wasteful number, since it uses less digits than its factorization.

38847072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36811 (or 36803 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 38847072 is about 6232.7419327291. The cubic root of 38847072 is about 338.6773062426.

The spelling of 38847072 in words is "thirty-eight million, eight hundred forty-seven thousand, seventy-two".