38708020 has 48 divisors (see below), whose sum is σ = 89223120. Its totient is φ = 14022528.

The previous prime is 38707987. The next prime is 38708023. The reversal of 38708020 is 2080783.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3732624 + 34975396 = 1932^2 + 5914^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 38708020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38708023) 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, 730314 + ... + 730366.

It is an arithmetic number, because the mean of its divisors is an integer number (1858815).

Almost surely, 2^38708020 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 38708020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44611560).

38708020 is an abundant number, since it is smaller than the sum of its proper divisors (50515100).

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

38708020 is an equidigital number, since it uses as much as digits as its factorization.

38708020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 38708020 is about 6221.5769705116. The cubic root of 38708020 is about 338.2727278396.

The spelling of 38708020 in words is "thirty-eight million, seven hundred eight thousand, twenty".