420144398 has 16 divisors (see below), whose sum is σ = 647799984. Its totient is φ = 204220800.

The previous prime is 420144367. The next prime is 420144401. The reversal of 420144398 is 893441024.

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, 148598 + ... + 151398.

It is an arithmetic number, because the mean of its divisors is an integer number (40487499).

Almost surely, 2^420144398 is an apocalyptic number.

420144398 is a deficient number, since it is larger than the sum of its proper divisors (227655586).

420144398 is a wasteful number, since it uses less digits than its factorization.

420144398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4867.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 420144398 is about 20497.4241796378. The cubic root of 420144398 is about 748.9730525545.

The spelling of 420144398 in words is "four hundred twenty million, one hundred forty-four thousand, three hundred ninety-eight".