281234976 has 192 divisors, whose sum is σ = 850010112. Its totient is φ = 81312000.

The previous prime is 281234971. The next prime is 281234983. The reversal of 281234976 is 679432182.

It is a super-2 number, since 2×281234976² = 158186223451441152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281234971) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3961021 + ... + 3961091.

It is an arithmetic number, because the mean of its divisors is an integer number (4427136).

Almost surely, 2^281234976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 281234976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425005056).

281234976 is an abundant number, since it is smaller than the sum of its proper divisors (568775136).

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

281234976 is a wasteful number, since it uses less digits than its factorization.

281234976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 118 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 281234976 is about 16770.0618961291. The cubic root of 281234976 is about 655.1736819686.

The spelling of 281234976 in words is "two hundred eighty-one million, two hundred thirty-four thousand, nine hundred seventy-six".