38047728 has 40 divisors (see below), whose sum is σ = 103465600. Its totient is φ = 12014784.

The previous prime is 38047721. The next prime is 38047741. The reversal of 38047728 is 82774083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38047721) 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, 19948 + ... + 21771.

It is an arithmetic number, because the mean of its divisors is an integer number (2586640).

Almost surely, 2^38047728 is an apocalyptic number.

38047728 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

38047728 is an abundant number, since it is smaller than the sum of its proper divisors (65417872).

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

38047728 is a wasteful number, since it uses less digits than its factorization.

38047728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41749 (or 41743 counting only the distinct ones).

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

The square root of 38047728 is about 6168.2840401525. The cubic root of 38047728 is about 336.3382364954.

The spelling of 38047728 in words is "thirty-eight million, forty-seven thousand, seven hundred twenty-eight".