38278116 has 48 divisors (see below), whose sum is σ = 101364480. Its totient is φ = 12486240.

The previous prime is 38278111. The next prime is 38278117. The reversal of 38278116 is 61187283.

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

It is not an unprimeable number, because it can be changed into a prime (38278111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1306 + ... + 8846.

It is an arithmetic number, because the mean of its divisors is an integer number (2111760).

Almost surely, 2^38278116 is an apocalyptic number.

38278116 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 38278116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50682240).

38278116 is an abundant number, since it is smaller than the sum of its proper divisors (63086364).

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

38278116 is a wasteful number, since it uses less digits than its factorization.

38278116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7601 (or 7593 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 38278116 is about 6186.9310647525. The cubic root of 38278116 is about 337.0157400626.

The spelling of 38278116 in words is "thirty-eight million, two hundred seventy-eight thousand, one hundred sixteen".