474521421 has 16 divisors (see below), whose sum is σ = 692405568. Its totient is φ = 286675200.

The previous prime is 474521417. The next prime is 474521429. The reversal of 474521421 is 124125474.

It is not a de Polignac number, because 474521421 - 2² = 474521417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474521429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12220 + ... + 33141.

It is an arithmetic number, because the mean of its divisors is an integer number (43275348).

Almost surely, 2^474521421 is an apocalyptic number.

It is an amenable number.

474521421 is a deficient number, since it is larger than the sum of its proper divisors (217884147).

474521421 is a wasteful number, since it uses less digits than its factorization.

474521421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45692.

The product of its digits is 8960, while the sum is 30.

The square root of 474521421 is about 21783.5125955389. The cubic root of 474521421 is about 779.9832458597.

Adding to 474521421 its reverse (124125474), we get a palindrome (598646895).

The spelling of 474521421 in words is "four hundred seventy-four million, five hundred twenty-one thousand, four hundred twenty-one".