424381693 has 16 divisors (see below), whose sum is σ = 465124464. Its totient is φ = 385597440.

The previous prime is 424381691. The next prime is 424381709. The reversal of 424381693 is 396183424.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 10381284 + 414000409 = 3222^2 + 20347^2 .

It is a cyclic number.

It is not a de Polignac number, because 424381693 - 2¹ = 424381691 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424381691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64471 + ... + 70747.

It is an arithmetic number, because the mean of its divisors is an integer number (29070279).

Almost surely, 2^424381693 is an apocalyptic number.

It is an amenable number.

424381693 is a deficient number, since it is larger than the sum of its proper divisors (40742771).

424381693 is a wasteful number, since it uses less digits than its factorization.

424381693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6432.

The product of its digits is 124416, while the sum is 40.

The square root of 424381693 is about 20600.5265223974. The cubic root of 424381693 is about 751.4825153040.

The spelling of 424381693 in words is "four hundred twenty-four million, three hundred eighty-one thousand, six hundred ninety-three".