421913152 has 14 divisors (see below), whose sum is σ = 837234038. Its totient is φ = 210956544.

The previous prime is 421913143. The next prime is 421913159. The reversal of 421913152 is 251319124.

It can be written as a sum of positive squares in only one way, i.e., 213861376 + 208051776 = 14624^2 + 14424^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 421913152.

It is not an unprimeable number, because it can be changed into a prime (421913159) by changing a digit.

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 as a sum of consecutive naturals, namely, 3296133 + ... + 3296260.

Almost surely, 2^421913152 is an apocalyptic number.

It is an amenable number.

421913152 is a deficient number, since it is larger than the sum of its proper divisors (415320886).

421913152 is an equidigital number, since it uses as much as digits as its factorization.

421913152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6592405 (or 6592395 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 421913152 is about 20540.5246281588. The cubic root of 421913152 is about 750.0226079111.

It can be divided in two parts, 4219 and 13152, that added together give a palindrome (17371).

The spelling of 421913152 in words is "four hundred twenty-one million, nine hundred thirteen thousand, one hundred fifty-two".