281228814 has 16 divisors (see below), whose sum is σ = 624953040. Its totient is φ = 93742920.

The previous prime is 281228789. The next prime is 281228821. The reversal of 281228814 is 418822182.

It is a super-3 number, since 3×281228814³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2603917 + ... + 2604024.

It is an arithmetic number, because the mean of its divisors is an integer number (39059565).

Almost surely, 2^281228814 is an apocalyptic number.

281228814 is an abundant number, since it is smaller than the sum of its proper divisors (343724226).

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

281228814 is a wasteful number, since it uses less digits than its factorization.

281228814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5207952 (or 5207946 counting only the distinct ones).

The product of its digits is 16384, while the sum is 36.

The square root of 281228814 is about 16769.8781748706. The cubic root of 281228814 is about 655.1688968718.

It can be divided in two parts, 2812 and 28814, that added together give a triangular number (31626 = T₂₅₁).

The spelling of 281228814 in words is "two hundred eighty-one million, two hundred twenty-eight thousand, eight hundred fourteen".