420191876 has 48 divisors (see below), whose sum is σ = 829315200. Its totient is φ = 184833792.

The previous prime is 420191867. The next prime is 420191881. The reversal of 420191876 is 678191024.

It is a super-2 number, since 2×420191876² = 353122425312798752, 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 in 15 ways as a sum of consecutive naturals, for example, 488735 + ... + 489593.

It is an arithmetic number, because the mean of its divisors is an integer number (17277400).

Almost surely, 2^420191876 is an apocalyptic number.

420191876 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

420191876 is a deficient number, since it is larger than the sum of its proper divisors (409123324).

420191876 is a wasteful number, since it uses less digits than its factorization.

420191876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 420191876 is about 20498.5822924416. The cubic root of 420191876 is about 749.0012638102.

The spelling of 420191876 in words is "four hundred twenty million, one hundred ninety-one thousand, eight hundred seventy-six".