421532470 has 16 divisors (see below), whose sum is σ = 763000560. Its totient is φ = 167670304.

The previous prime is 421532401. The next prime is 421532491. The reversal of 421532470 is 74235124.

It is a congruent number.

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, 115957 + ... + 119536.

It is an arithmetic number, because the mean of its divisors is an integer number (47687535).

Almost surely, 2^421532470 is an apocalyptic number.

421532470 is a deficient number, since it is larger than the sum of its proper divisors (341468090).

421532470 is a wasteful number, since it uses less digits than its factorization.

421532470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235679.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 421532470 is about 20531.2559284619. The cubic root of 421532470 is about 749.7969642996.

Adding to 421532470 its reverse (74235124), we get a palindrome (495767594).

The spelling of 421532470 in words is "four hundred twenty-one million, five hundred thirty-two thousand, four hundred seventy".