426380281 has 8 divisors (see below), whose sum is σ = 456117480. Its totient is φ = 397160448.

The previous prime is 426380263. The next prime is 426380291. The reversal of 426380281 is 182083624.

It can be written as a sum of positive squares in 4 ways, for example, as 56010256 + 370370025 = 7484^2 + 19245^2 .

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 426380281 - 2⁷ = 426380153 is a prime.

It is a super-2 number, since 2×426380281² = 363600288051277922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (426380261) 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, 127636 + ... + 130933.

It is an arithmetic number, because the mean of its divisors is an integer number (57014685).

Almost surely, 2^426380281 is an apocalyptic number.

It is an amenable number.

426380281 is a deficient number, since it is larger than the sum of its proper divisors (29737199).

426380281 is a wasteful number, since it uses less digits than its factorization.

426380281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258683.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 426380281 is about 20648.9777228801. The cubic root of 426380281 is about 752.6603483858.

The spelling of 426380281 in words is "four hundred twenty-six million, three hundred eighty thousand, two hundred eighty-one".