420304440221432 has 32 divisors (see below), whose sum is σ = 885591295454880. Its totient is φ = 185552461902720.

The previous prime is 420304440221339. The next prime is 420304440221441. The reversal of 420304440221432 is 234122044403024.

It is a junction number, because it is equal to n+sod(n) for n = 420304440221392 and 420304440221401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87856276919 + ... + 87856281702.

It is an arithmetic number, because the mean of its divisors is an integer number (27674727982965).

Almost surely, 2^{420304440221432} is an apocalyptic number.

It is an amenable number.

420304440221432 is an abundant number, since it is smaller than the sum of its proper divisors (465286855233448).

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

420304440221432 is a wasteful number, since it uses less digits than its factorization.

420304440221432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175712558663 (or 175712558659 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 420304440221432 its reverse (234122044403024), we get a palindrome (654426484624456).

The spelling of 420304440221432 in words is "four hundred twenty trillion, three hundred four billion, four hundred forty million, two hundred twenty-one thousand, four hundred thirty-two".