38550720 has 112 divisors (see below), whose sum is σ = 131856480. Its totient is φ = 9486336.

The previous prime is 38550703. The next prime is 38550751. The reversal of 38550720 is 2705583.

It is a happy number.

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

It is a congruent number.

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, 10936 + ... + 14024.

It is an arithmetic number, because the mean of its divisors is an integer number (1177290).

Almost surely, 2^38550720 is an apocalyptic number.

38550720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38550720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65928240).

38550720 is an abundant number, since it is smaller than the sum of its proper divisors (93305760).

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

38550720 is a wasteful number, since it uses less digits than its factorization.

38550720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122 (or 3112 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 38550720 is about 6208.9226118547. The cubic root of 38550720 is about 337.8138863112.

The spelling of 38550720 in words is "thirty-eight million, five hundred fifty thousand, seven hundred twenty".