38447316 has 72 divisors (see below), whose sum is σ = 102595584. Its totient is φ = 12121920.

The previous prime is 38447303. The next prime is 38447327. The reversal of 38447316 is 61374483.

It is a super-2 number, since 2×38447316² = 2956392215207712, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

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, 52086 + ... + 52818.

Almost surely, 2^38447316 is an apocalyptic number.

38447316 is a gapful number since it is divisible by the number (36) 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 38447316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51297792).

38447316 is an abundant number, since it is smaller than the sum of its proper divisors (64148268).

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

38447316 is a wasteful number, since it uses less digits than its factorization.

38447316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 816 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 38447316 is about 6200.5899719301. The cubic root of 38447316 is about 337.5115782036.

The spelling of 38447316 in words is "thirty-eight million, four hundred forty-seven thousand, three hundred sixteen".