38380356 has 144 divisors (see below), whose sum is σ = 121605120. Its totient is φ = 9987840.

The previous prime is 38380351. The next prime is 38380367. The reversal of 38380356 is 65308383.

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

It is a self number, because there is not a number n which added to its sum of digits gives 38380356.

It is not an unprimeable number, because it can be changed into a prime (38380351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1238061 + ... + 1238091.

It is an arithmetic number, because the mean of its divisors is an integer number (844480).

Almost surely, 2^38380356 is an apocalyptic number.

38380356 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 38380356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60802560).

38380356 is an abundant number, since it is smaller than the sum of its proper divisors (83224764).

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

38380356 is a wasteful number, since it uses less digits than its factorization.

38380356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 38380356 is about 6195.1881327366. The cubic root of 38380356 is about 337.3155271716.

The spelling of 38380356 in words is "thirty-eight million, three hundred eighty thousand, three hundred fifty-six".