420432231434 has 16 divisors (see below), whose sum is σ = 648183352776. Its totient is φ = 204379718400.

The previous prime is 420432231421. The next prime is 420432231449. The reversal of 420432231434 is 434132234024.

It can be written as a sum of positive squares in 4 ways, for example, as 394365160225 + 26067071209 = 627985^2 + 161453^2 .

It is a super-2 number, since 2×420432231434² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420432231434.

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, 2052707 + ... + 2248214.

Almost surely, 2^420432231434 is an apocalyptic number.

420432231434 is a deficient number, since it is larger than the sum of its proper divisors (227751121342).

420432231434 is a wasteful number, since it uses less digits than its factorization.

420432231434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4302281.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 420432231434 its reverse (434132234024), we get a palindrome (854564465458).

The spelling of 420432231434 in words is "four hundred twenty billion, four hundred thirty-two million, two hundred thirty-one thousand, four hundred thirty-four".