38220768 has 96 divisors (see below), whose sum is σ = 115153920. Its totient is φ = 12320640.

The previous prime is 38220757. The next prime is 38220769. The reversal of 38220768 is 86702283.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38220769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26071 + ... + 27497.

It is an arithmetic number, because the mean of its divisors is an integer number (1199520).

Almost surely, 2^38220768 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 38220768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57576960).

38220768 is an abundant number, since it is smaller than the sum of its proper divisors (76933152).

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

38220768 is a wasteful number, since it uses less digits than its factorization.

38220768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477 (or 1463 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 38220768 is about 6182.2947196005. The cubic root of 38220768 is about 336.8473510833.

The spelling of 38220768 in words is "thirty-eight million, two hundred twenty thousand, seven hundred sixty-eight".