38555320 has 96 divisors (see below), whose sum is σ = 96519600. Its totient is φ = 13808640.

The previous prime is 38555311. The next prime is 38555323. The reversal of 38555320 is 2355583.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38555323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 653451 + ... + 653509.

Almost surely, 2^38555320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38555320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48259800).

38555320 is an abundant number, since it is smaller than the sum of its proper divisors (57964280).

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

38555320 is a wasteful number, since it uses less digits than its factorization.

38555320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 38555320 is about 6209.2930354429. The cubic root of 38555320 is about 337.8273221352.

The spelling of 38555320 in words is "thirty-eight million, five hundred fifty-five thousand, three hundred twenty".