38722320 has 320 divisors, whose sum is σ = 164989440. Its totient is φ = 8128512.

The previous prime is 38722319. The next prime is 38722331. The reversal of 38722320 is 2322783.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 196462 + ... + 196658.

It is an arithmetic number, because the mean of its divisors is an integer number (515592).

Almost surely, 2^38722320 is an apocalyptic number.

38722320 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 38722320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82494720).

38722320 is an abundant number, since it is smaller than the sum of its proper divisors (126267120).

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

38722320 is a wasteful number, since it uses less digits than its factorization.

38722320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 38722320 is about 6222.7260907098. The cubic root of 38722320 is about 338.3143790223.

The spelling of 38722320 in words is "thirty-eight million, seven hundred twenty-two thousand, three hundred twenty".