420727334 has 4 divisors (see below), whose sum is σ = 631091004. Its totient is φ = 210363666.

The previous prime is 420727301. The next prime is 420727337. The reversal of 420727334 is 433727024.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×420727334² = 354022979149495112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420727334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420727337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105181832 + ... + 105181835.

It is an arithmetic number, because the mean of its divisors is an integer number (157772751).

Almost surely, 2^420727334 is an apocalyptic number.

420727334 is a deficient number, since it is larger than the sum of its proper divisors (210363670).

420727334 is a wasteful number, since it uses less digits than its factorization.

420727334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210363669.

The product of its (nonzero) digits is 28224, while the sum is 32.

The square root of 420727334 is about 20511.6389886328. The cubic root of 420727334 is about 749.3192839842.

The spelling of 420727334 in words is "four hundred twenty million, seven hundred twenty-seven thousand, three hundred thirty-four".