420527938 has 8 divisors (see below), whose sum is σ = 634662288. Its totient is φ = 208973844.

The previous prime is 420527923. The next prime is 420527951. The reversal of 420527938 is 839725024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 420527938.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 644656 + ... + 645307.

It is an arithmetic number, because the mean of its divisors is an integer number (79332786).

Almost surely, 2^420527938 is an apocalyptic number.

420527938 is a deficient number, since it is larger than the sum of its proper divisors (214134350).

420527938 is a wasteful number, since it uses less digits than its factorization.

420527938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290128.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 420527938 is about 20506.7778551385. Note that the first 3 decimals coincide. The cubic root of 420527938 is about 749.2008899035.

The spelling of 420527938 in words is "four hundred twenty million, five hundred twenty-seven thousand, nine hundred thirty-eight".