420234134 has 32 divisors (see below), whose sum is σ = 674472960. Its totient is φ = 195804000.

The previous prime is 420234121. The next prime is 420234137. The reversal of 420234134 is 431432024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420234137) 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, 855629 + ... + 856119.

It is an arithmetic number, because the mean of its divisors is an integer number (21077280).

Almost surely, 2^420234134 is an apocalyptic number.

420234134 is a deficient number, since it is larger than the sum of its proper divisors (254238826).

420234134 is a wasteful number, since it uses less digits than its factorization.

420234134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 420234134 is about 20499.6130207377. The cubic root of 420234134 is about 749.0263715735.

Adding to 420234134 its reverse (431432024), we get a palindrome (851666158).

The spelling of 420234134 in words is "four hundred twenty million, two hundred thirty-four thousand, one hundred thirty-four".