402431304030 has 64 divisors (see below), whose sum is σ = 1104668651520. Its totient is φ = 91912875264.

The previous prime is 402431303987. The next prime is 402431304059. The reversal of 402431304030 is 30403134204.

It is a super-4 number, since 4×402431304030⁴ (a number of 48 digits) contains 4444 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 472654 + ... + 1014033.

It is an arithmetic number, because the mean of its divisors is an integer number (17260447680).

Almost surely, 2^402431304030 is an apocalyptic number.

402431304030 is an abundant number, since it is smaller than the sum of its proper divisors (702237347490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402431304030 is a wasteful number, since it uses less digits than its factorization.

402431304030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487993.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 402431304030 its reverse (30403134204), we get a palindrome (432834438234).

The spelling of 402431304030 in words is "four hundred two billion, four hundred thirty-one million, three hundred four thousand, thirty".