432420221402 has 16 divisors (see below), whose sum is σ = 698542814760. Its totient is φ = 199573466112.

The previous prime is 432420221339. The next prime is 432420221411. The reversal of 432420221402 is 204122024234.

It can be written as a sum of positive squares in 4 ways, for example, as 321909851641 + 110510369761 = 567371^2 + 332431^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 943874 + ... + 1325042.

Almost surely, 2^432420221402 is an apocalyptic number.

432420221402 is a deficient number, since it is larger than the sum of its proper divisors (266122593358).

432420221402 is a wasteful number, since it uses less digits than its factorization.

432420221402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424817.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 432420221402 its reverse (204122024234), we get a palindrome (636542245636).

The spelling of 432420221402 in words is "four hundred thirty-two billion, four hundred twenty million, two hundred twenty-one thousand, four hundred two".