421849474 has 4 divisors (see below), whose sum is σ = 632774214. Its totient is φ = 210924736.

The previous prime is 421849459. The next prime is 421849507. The reversal of 421849474 is 474948124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 413105625 + 8743849 = 20325^2 + 2957^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 421849474.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105462367 + ... + 105462370.

Almost surely, 2^421849474 is an apocalyptic number.

421849474 is a deficient number, since it is larger than the sum of its proper divisors (210924740).

421849474 is a wasteful number, since it uses less digits than its factorization.

421849474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210924739.

The product of its digits is 258048, while the sum is 43.

The square root of 421849474 is about 20538.9745118884. The cubic root of 421849474 is about 749.9848731764.

The spelling of 421849474 in words is "four hundred twenty-one million, eight hundred forty-nine thousand, four hundred seventy-four".