281398801 has 8 divisors (see below), whose sum is σ = 292489344. Its totient is φ = 270491760.

The previous prime is 281398787. The next prime is 281398849. The reversal of 281398801 is 108893182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 281398801 - 2⁹ = 281398289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (281398001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42745 + ... + 48886.

It is an arithmetic number, because the mean of its divisors is an integer number (36561168).

Almost surely, 2^281398801 is an apocalyptic number.

It is an amenable number.

281398801 is a deficient number, since it is larger than the sum of its proper divisors (11090543).

281398801 is an equidigital number, since it uses as much as digits as its factorization.

281398801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91751.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 281398801 is about 16774.9456332949. The cubic root of 281398801 is about 655.3008745335.

The spelling of 281398801 in words is "two hundred eighty-one million, three hundred ninety-eight thousand, eight hundred one".