38413530 has 48 divisors (see below), whose sum is σ = 101526984. Its totient is φ = 10074240.

The previous prime is 38413481. The next prime is 38413537. The reversal of 38413530 is 3531483.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16426809 + 21986721 = 4053^2 + 4689^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38413494 and 38413503.

It is not an unprimeable number, because it can be changed into a prime (38413537) 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 23 ways as a sum of consecutive naturals, for example, 1992 + ... + 8988.

Almost surely, 2^38413530 is an apocalyptic number.

38413530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38413530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50763492).

38413530 is an abundant number, since it is smaller than the sum of its proper divisors (63113454).

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

38413530 is a wasteful number, since it uses less digits than its factorization.

38413530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7071 (or 7068 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 38413530 is about 6197.8649549663. The cubic root of 38413530 is about 337.4126852316.

The spelling of 38413530 in words is "thirty-eight million, four hundred thirteen thousand, five hundred thirty".