38470728 has 32 divisors (see below), whose sum is σ = 101835360. Its totient is φ = 12069120.

The previous prime is 38470727. The next prime is 38470741. The reversal of 38470728 is 82707483.

It is not an unprimeable number, because it can be changed into a prime (38470727) 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, 46738 + ... + 47553.

It is an arithmetic number, because the mean of its divisors is an integer number (3182355).

Almost surely, 2^38470728 is an apocalyptic number.

It is an amenable number.

38470728 is an abundant number, since it is smaller than the sum of its proper divisors (63364632).

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

38470728 is a wasteful number, since it uses less digits than its factorization.

38470728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94317 (or 94313 counting only the distinct ones).

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

The square root of 38470728 is about 6202.4775694879. The cubic root of 38470728 is about 337.5800720850.

It can be divided in two parts, 3 and 8470728, that multiplied together give a cube (25412184 = 294³).

The spelling of 38470728 in words is "thirty-eight million, four hundred seventy thousand, seven hundred twenty-eight".