38812020 has 96 divisors (see below), whose sum is σ = 123959808. Its totient is φ = 8988672.

The previous prime is 38812019. The next prime is 38812021. The reversal of 38812020 is 2021883.

It is an interprime number because it is at equal distance from previous prime (38812019) and next prime (38812021).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38812021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11797 + ... + 14723.

It is an arithmetic number, because the mean of its divisors is an integer number (1291248).

Almost surely, 2^38812020 is an apocalyptic number.

38812020 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 38812020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61979904).

38812020 is an abundant number, since it is smaller than the sum of its proper divisors (85147788).

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

38812020 is a wasteful number, since it uses less digits than its factorization.

38812020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2969 (or 2967 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 38812020 is about 6229.9293735965. The cubic root of 38812020 is about 338.5754119114.

The spelling of 38812020 in words is "thirty-eight million, eight hundred twelve thousand, twenty".