420381814 has 16 divisors (see below), whose sum is σ = 673910928. Its totient is φ = 195976192.

The previous prime is 420381779. The next prime is 420381847. The reversal of 420381814 is 418183024.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 54139 + ... + 61414.

It is an arithmetic number, because the mean of its divisors is an integer number (42119433).

Almost surely, 2^420381814 is an apocalyptic number.

420381814 is a deficient number, since it is larger than the sum of its proper divisors (253529114).

420381814 is a wasteful number, since it uses less digits than its factorization.

420381814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115679.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 420381814 is about 20503.2147235501. The cubic root of 420381814 is about 749.1141030311.

The spelling of 420381814 in words is "four hundred twenty million, three hundred eighty-one thousand, eight hundred fourteen".