38198550 has 96 divisors (see below), whose sum is σ = 107493120. Its totient is φ = 8899200.

The previous prime is 38198543. The next prime is 38198551. The reversal of 38198550 is 5589183.

38198550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 38198499 and 38198508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38198551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36535 + ... + 37565.

It is an arithmetic number, because the mean of its divisors is an integer number (1119720).

Almost surely, 2^38198550 is an apocalyptic number.

38198550 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 38198550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53746560).

38198550 is an abundant number, since it is smaller than the sum of its proper divisors (69294570).

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

38198550 is a wasteful number, since it uses less digits than its factorization.

38198550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078 (or 1073 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 38198550 is about 6180.4975527865. The cubic root of 38198550 is about 336.7820678574.

The spelling of 38198550 in words is "thirty-eight million, one hundred ninety-eight thousand, five hundred fifty".