424036385 has 8 divisors (see below), whose sum is σ = 508989096. Its totient is φ = 339132160.

The previous prime is 424036381. The next prime is 424036409. The reversal of 424036385 is 583630424.

It can be written as a sum of positive squares in 4 ways, for example, as 243859456 + 180176929 = 15616^2 + 13423^2 .

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

It is not a de Polignac number, because 424036385 - 2² = 424036381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424036381) 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, 11207 + ... + 31203.

It is an arithmetic number, because the mean of its divisors is an integer number (63623637).

Almost surely, 2^424036385 is an apocalyptic number.

It is an amenable number.

424036385 is a deficient number, since it is larger than the sum of its proper divisors (84952711).

424036385 is a wasteful number, since it uses less digits than its factorization.

424036385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24243.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 424036385 is about 20592.1437689231. The cubic root of 424036385 is about 751.2786396096.

The spelling of 424036385 in words is "four hundred twenty-four million, thirty-six thousand, three hundred eighty-five".