402424341490 has 8 divisors (see below), whose sum is σ = 724363814700. Its totient is φ = 160969736592.

The previous prime is 402424341467. The next prime is 402424341491. The reversal of 402424341490 is 94143424204.

It can be written as a sum of positive squares in 2 ways, for example, as 379627267321 + 22797074169 = 616139^2 + 150987^2 .

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

It is not an unprimeable number, because it can be changed into a prime (402424341491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20121217065 + ... + 20121217084.

Almost surely, 2^402424341490 is an apocalyptic number.

402424341490 is a deficient number, since it is larger than the sum of its proper divisors (321939473210).

402424341490 is a wasteful number, since it uses less digits than its factorization.

402424341490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40242434156.

The product of its (nonzero) digits is 110592, while the sum is 37.

Adding to 402424341490 its reverse (94143424204), we get a palindrome (496567765694).

The spelling of 402424341490 in words is "four hundred two billion, four hundred twenty-four million, three hundred forty-one thousand, four hundred ninety".