420505354 has 8 divisors (see below), whose sum is σ = 634243428. Its totient is φ = 209090880.

The previous prime is 420505303. The next prime is 420505363. The reversal of 420505354 is 453505024.

It can be written as a sum of positive squares in 2 ways, for example, as 310570129 + 109935225 = 17623^2 + 10485^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580447 + ... + 581170.

Almost surely, 2^420505354 is an apocalyptic number.

420505354 is a deficient number, since it is larger than the sum of its proper divisors (213738074).

420505354 is a wasteful number, since it uses less digits than its factorization.

420505354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161800.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 420505354 is about 20506.2272005359. The cubic root of 420505354 is about 749.1874779878.

The spelling of 420505354 in words is "four hundred twenty million, five hundred five thousand, three hundred fifty-four".