420453626 has 8 divisors (see below), whose sum is σ = 633387924. Its totient is φ = 209324320.

The previous prime is 420453619. The next prime is 420453653. The reversal of 420453626 is 626354024.

It can be written as a sum of positive squares in 2 ways, for example, as 326344225 + 94109401 = 18065^2 + 9701^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 420453592 and 420453601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450665 + ... + 451596.

Almost surely, 2^420453626 is an apocalyptic number.

420453626 is a deficient number, since it is larger than the sum of its proper divisors (212934298).

420453626 is a wasteful number, since it uses less digits than its factorization.

420453626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902496.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 420453626 is about 20504.9658863408. The cubic root of 420453626 is about 749.1567565723.

The spelling of 420453626 in words is "four hundred twenty million, four hundred fifty-three thousand, six hundred twenty-six".