38128506 has 16 divisors (see below), whose sum is σ = 82123104. Its totient is φ = 11731824.

The previous prime is 38128499. The next prime is 38128507. The reversal of 38128506 is 60582183.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (38128507) 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, 244336 + ... + 244491.

It is an arithmetic number, because the mean of its divisors is an integer number (5132694).

Almost surely, 2^38128506 is an apocalyptic number.

38128506 is an abundant number, since it is smaller than the sum of its proper divisors (43994598).

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

38128506 is a wasteful number, since it uses less digits than its factorization.

38128506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488845.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 38128506 is about 6174.8284186688. The cubic root of 38128506 is about 336.5760914835.

The spelling of 38128506 in words is "thirty-eight million, one hundred twenty-eight thousand, five hundred six".