280421601 has 8 divisors (see below), whose sum is σ = 376625184. Its totient is φ = 185582880.

The previous prime is 280421573. The next prime is 280421621. The reversal of 280421601 is 106124082.

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

It is not a de Polignac number, because 280421601 - 2¹³ = 280413409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (280421621) 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, 340735 + ... + 341556.

It is an arithmetic number, because the mean of its divisors is an integer number (47078148).

Almost surely, 2^280421601 is an apocalyptic number.

It is an amenable number.

280421601 is a deficient number, since it is larger than the sum of its proper divisors (96203583).

280421601 is a wasteful number, since it uses less digits than its factorization.

280421601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682431.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 280421601 is about 16745.7935315111. The cubic root of 280421601 is about 654.5414509032.

Adding to 280421601 its reverse (106124082), we get a palindrome (386545683).

The spelling of 280421601 in words is "two hundred eighty million, four hundred twenty-one thousand, six hundred one".