424302381 has 10 divisors (see below), whose sum is σ = 633834542. Its totient is φ = 282868200.

The previous prime is 424302379. The next prime is 424302407. The reversal of 424302381 is 183203424.

424302381 is a `hidden beast` number, since 424 + 3 + 0 + 238 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 253764900 + 170537481 = 15930^2 + 13059^2 .

It is not a de Polignac number, because 424302381 - 2¹ = 424302379 is a prime.

It is a super-2 number, since 2×424302381² = 360065021044538322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424306381) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2619070 + ... + 2619231.

Almost surely, 2^424302381 is an apocalyptic number.

It is an amenable number.

424302381 is a deficient number, since it is larger than the sum of its proper divisors (209532161).

424302381 is an equidigital number, since it uses as much as digits as its factorization.

424302381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5238313 (or 5238304 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 424302381 is about 20598.6014331071. The cubic root of 424302381 is about 751.4356979416.

The spelling of 424302381 in words is "four hundred twenty-four million, three hundred two thousand, three hundred eighty-one".