474434021 has 4 divisors (see below), whose sum is σ = 474941292. Its totient is φ = 473926752.

The previous prime is 474433979. The next prime is 474434033. The reversal of 474434021 is 120434474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120434474 = 2 ⋅60217237.

It can be written as a sum of positive squares in 2 ways, for example, as 156525121 + 317908900 = 12511^2 + 17830^2 .

It is a cyclic number.

It is not a de Polignac number, because 474434021 - 2¹⁰ = 474432997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474434221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252230 + ... + 254103.

It is an arithmetic number, because the mean of its divisors is an integer number (118735323).

Almost surely, 2^474434021 is an apocalyptic number.

It is an amenable number.

474434021 is a deficient number, since it is larger than the sum of its proper divisors (507271).

474434021 is an equidigital number, since it uses as much as digits as its factorization.

474434021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507270.

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 474434021 is about 21781.5063987778. The cubic root of 474434021 is about 779.9353556989.

Adding to 474434021 its reverse (120434474), we get a palindrome (594868495).

The spelling of 474434021 in words is "four hundred seventy-four million, four hundred thirty-four thousand, twenty-one".