38678250 has 64 divisors (see below), whose sum is σ = 103993344. Its totient is φ = 9518400.

The previous prime is 38678221. The next prime is 38678267. The reversal of 38678250 is 5287683.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 38678199 and 38678208.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7767 + ... + 11733.

It is an arithmetic number, because the mean of its divisors is an integer number (1624896).

Almost surely, 2^38678250 is an apocalyptic number.

38678250 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 38678250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51996672).

38678250 is an abundant number, since it is smaller than the sum of its proper divisors (65315094).

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

38678250 is a wasteful number, since it uses less digits than its factorization.

38678250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4000 (or 3990 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 38678250 is about 6219.1840300798. The cubic root of 38678250 is about 338.1859847315.

The spelling of 38678250 in words is "thirty-eight million, six hundred seventy-eight thousand, two hundred fifty".