38806320 has 80 divisors (see below), whose sum is σ = 137491200. Its totient is φ = 8869632.

The previous prime is 38806307. The next prime is 38806337. The reversal of 38806320 is 2360883.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9870 + ... + 13229.

It is an arithmetic number, because the mean of its divisors is an integer number (1718640).

Almost surely, 2^38806320 is an apocalyptic number.

38806320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38806320 is an abundant number, since it is smaller than the sum of its proper divisors (98684880).

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

38806320 is a wasteful number, since it uses less digits than its factorization.

38806320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23122 (or 23116 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 38806320 is about 6229.4718877285. The cubic root of 38806320 is about 338.5588365109.

The spelling of 38806320 in words is "thirty-eight million, eight hundred six thousand, three hundred twenty".