38203812 has 60 divisors (see below), whose sum is σ = 101562076. Its totient is φ = 12519360.

The previous prime is 38203807. The next prime is 38203819. The reversal of 38203812 is 21830283.

It can be written as a sum of positive squares in 2 ways, for example, as 11329956 + 26873856 = 3366^2 + 5184^2 .

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

It is not an unprimeable number, because it can be changed into a prime (38203819) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18798 + ... + 20730.

Almost surely, 2^38203812 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 38203812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50781038).

38203812 is an abundant number, since it is smaller than the sum of its proper divisors (63358264).

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

38203812 is a wasteful number, since it uses less digits than its factorization.

38203812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010 (or 1999 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 38203812 is about 6180.9232320099. The cubic root of 38203812 is about 336.7975314974.

The spelling of 38203812 in words is "thirty-eight million, two hundred three thousand, eight hundred twelve".