420113434 has 16 divisors (see below), whose sum is σ = 684655272. Its totient is φ = 192181248.

The previous prime is 420113431. The next prime is 420113471. The reversal of 420113434 is 434311024.

It can be written as a sum of positive squares in 4 ways, for example, as 223412809 + 196700625 = 14947^2 + 14025^2 .

It is not an unprimeable number, because it can be changed into a prime (420113431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68559 + ... + 74434.

Almost surely, 2^420113434 is an apocalyptic number.

420113434 is a deficient number, since it is larger than the sum of its proper divisors (264541838).

420113434 is a wasteful number, since it uses less digits than its factorization.

420113434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143121.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 420113434 is about 20496.6688513036. The cubic root of 420113434 is about 748.9546527127.

Adding to 420113434 its reverse (434311024), we get a palindrome (854424458).

The spelling of 420113434 in words is "four hundred twenty million, one hundred thirteen thousand, four hundred thirty-four".