420334755 has 16 divisors (see below), whose sum is σ = 672817920. Its totient is φ = 224084448.

The previous prime is 420334727. The next prime is 420334757. The reversal of 420334755 is 557433024.

It is not a de Polignac number, because 420334755 - 2¹¹ = 420332707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420334757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45564 + ... + 54006.

It is an arithmetic number, because the mean of its divisors is an integer number (42051120).

Almost surely, 2^420334755 is an apocalyptic number.

420334755 is a deficient number, since it is larger than the sum of its proper divisors (252483165).

420334755 is a wasteful number, since it uses less digits than its factorization.

420334755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11770.

The product of its (nonzero) digits is 50400, while the sum is 33.

The square root of 420334755 is about 20502.0670909057. The cubic root of 420334755 is about 749.0861491767.

Adding to 420334755 its reverse (557433024), we get a palindrome (977767779).

The spelling of 420334755 in words is "four hundred twenty million, three hundred thirty-four thousand, seven hundred fifty-five".