420541474 has 16 divisors (see below), whose sum is σ = 655545600. Its totient is φ = 202117680.

The previous prime is 420541447. The next prime is 420541487. The reversal of 420541474 is 474145024.

It is a Harshad number since it is a multiple of its sum of digits (31).

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 7 ways as a sum of consecutive naturals, for example, 13524 + ... + 31999.

It is an arithmetic number, because the mean of its divisors is an integer number (40971600).

Almost surely, 2^420541474 is an apocalyptic number.

420541474 is a deficient number, since it is larger than the sum of its proper divisors (235004126).

420541474 is a wasteful number, since it uses less digits than its factorization.

420541474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45705.

The product of its (nonzero) digits is 17920, while the sum is 31.

The square root of 420541474 is about 20507.1078897050. The cubic root of 420541474 is about 749.2089282711.

Adding to 420541474 its reverse (474145024), we get a palindrome (894686498).

The spelling of 420541474 in words is "four hundred twenty million, five hundred forty-one thousand, four hundred seventy-four".