420543146 has 16 divisors (see below), whose sum is σ = 641294280. Its totient is φ = 206807040.

The previous prime is 420543103. The next prime is 420543163. The reversal of 420543146 is 641345024.

It can be written as a sum of positive squares in 4 ways, for example, as 418652521 + 1890625 = 20461^2 + 1375^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22826 + ... + 36906.

Almost surely, 2^420543146 is an apocalyptic number.

420543146 is a deficient number, since it is larger than the sum of its proper divisors (220751134).

420543146 is a wasteful number, since it uses less digits than its factorization.

420543146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14329.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 420543146 is about 20507.1486560175. The cubic root of 420543146 is about 749.2099211781.

The spelling of 420543146 in words is "four hundred twenty million, five hundred forty-three thousand, one hundred forty-six".