38549728 has 24 divisors (see below), whose sum is σ = 86737392. Its totient is φ = 16521216.

The previous prime is 38549681. The next prime is 38549737. The reversal of 38549728 is 82794583.

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, 85825 + ... + 86272.

It is an arithmetic number, because the mean of its divisors is an integer number (3614058).

Almost surely, 2^38549728 is an apocalyptic number.

It is an amenable number.

38549728 is an abundant number, since it is smaller than the sum of its proper divisors (48187664).

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

38549728 is a wasteful number, since it uses less digits than its factorization.

38549728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172114 (or 172106 counting only the distinct ones).

The product of its digits is 483840, while the sum is 46.

The square root of 38549728 is about 6208.8427263058. The cubic root of 38549728 is about 337.8109887064.

The spelling of 38549728 in words is "thirty-eight million, five hundred forty-nine thousand, seven hundred twenty-eight".