420557354 has 16 divisors (see below), whose sum is σ = 721353600. Its totient is φ = 180139344.

The previous prime is 420557351. The next prime is 420557359. The reversal of 420557354 is 453755024.

It is not an unprimeable number, because it can be changed into a prime (420557351) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21707 + ... + 36225.

It is an arithmetic number, because the mean of its divisors is an integer number (45084600).

Almost surely, 2^420557354 is an apocalyptic number.

420557354 is a deficient number, since it is larger than the sum of its proper divisors (300796246).

420557354 is a wasteful number, since it uses less digits than its factorization.

420557354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16597.

The product of its (nonzero) digits is 84000, while the sum is 35.

The square root of 420557354 is about 20507.4950688766. The cubic root of 420557354 is about 749.2183584056.

The spelling of 420557354 in words is "four hundred twenty million, five hundred fifty-seven thousand, three hundred fifty-four".