10238778 has 48 divisors (see below), whose sum is σ = 25025280. Its totient is φ = 3100680.

The previous prime is 10238759. The next prime is 10238779. The reversal of 10238778 is 87783201.

It is not an unprimeable number, because it can be changed into a prime (10238779) 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 23 ways as a sum of consecutive naturals, for example, 5751 + ... + 7317.

It is an arithmetic number, because the mean of its divisors is an integer number (521360).

Almost surely, 2^10238778 is an apocalyptic number.

10238778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10238778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12512640).

10238778 is an abundant number, since it is smaller than the sum of its proper divisors (14786502).

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

10238778 is a wasteful number, since it uses less digits than its factorization.

10238778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600 (or 1583 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 10238778 is about 3199.8090568032. The cubic root of 10238778 is about 217.1447709154.

It can be divided in two parts, 1023 and 8778, that added together give a square (9801 = 99²).

The spelling of 10238778 in words is "ten million, two hundred thirty-eight thousand, seven hundred seventy-eight".