420415852 has 6 divisors (see below), whose sum is σ = 735727748. Its totient is φ = 210207924.

The previous prime is 420415841. The next prime is 420415889. The reversal of 420415852 is 258514024.

It is a super-2 number, since 2×420415852² = 353498977225771808, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 52551978 + ... + 52551985.

Almost surely, 2^420415852 is an apocalyptic number.

It is an amenable number.

420415852 is a deficient number, since it is larger than the sum of its proper divisors (315311896).

420415852 is a wasteful number, since it uses less digits than its factorization.

420415852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105103967 (or 105103965 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 420415852 is about 20504.0447717030. The cubic root of 420415852 is about 749.1343208877.

Adding to 420415852 its reverse (258514024), we get a palindrome (678929876).

The spelling of 420415852 in words is "four hundred twenty million, four hundred fifteen thousand, eight hundred fifty-two".