420187011 has 8 divisors (see below), whose sum is σ = 593205264. Its totient is φ = 263646720.

The previous prime is 420186953. The next prime is 420187039. The reversal of 420187011 is 110781024.

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

It is not a de Polignac number, because 420187011 - 2⁹ = 420186499 is a prime.

It is a super-2 number, since 2×420187011² = 353114248426228242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420187511) 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 in 7 ways as a sum of consecutive naturals, for example, 4119430 + ... + 4119531.

It is an arithmetic number, because the mean of its divisors is an integer number (74150658).

Almost surely, 2^420187011 is an apocalyptic number.

420187011 is a deficient number, since it is larger than the sum of its proper divisors (173018253).

420187011 is a wasteful number, since it uses less digits than its factorization.

420187011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8238981.

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 420187011 is about 20498.4636253550. The cubic root of 420187011 is about 748.9983731426.

The spelling of 420187011 in words is "four hundred twenty million, one hundred eighty-seven thousand, eleven".