1894243248 has 120 divisors (see below), whose sum is σ = 5450945760. Its totient is φ = 613831680.

The previous prime is 1894243243. The next prime is 1894243249. The reversal of 1894243248 is 8423424981.

1894243248 is a `hidden beast` number, since 189 + 424 + 3 + 2 + 48 = 666.

It is a super-3 number, since 3×1894243248³ (a number of 29 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1894243243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 780565 + ... + 782987.

It is an arithmetic number, because the mean of its divisors is an integer number (45424548).

Almost surely, 2^1894243248 is an apocalyptic number.

1894243248 is a gapful number since it is divisible by the number (18) 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 1894243248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2725472880).

1894243248 is an abundant number, since it is smaller than the sum of its proper divisors (3556702512).

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

1894243248 is a wasteful number, since it uses less digits than its factorization.

1894243248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587 (or 2578 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 1894243248 is about 43522.9048662885. The cubic root of 1894243248 is about 1237.3101700861.

The spelling of 1894243248 in words is "one billion, eight hundred ninety-four million, two hundred forty-three thousand, two hundred forty-eight".