421719448 has 16 divisors (see below), whose sum is σ = 793734480. Its totient is φ = 210056928.

The previous prime is 421719439. The next prime is 421719449. The reversal of 421719448 is 844917124.

It is a super-3 number, since 3×421719448³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 421719448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421719449) 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, 98115 + ... + 102322.

It is an arithmetic number, because the mean of its divisors is an integer number (49608405).

Almost surely, 2^421719448 is an apocalyptic number.

It is an amenable number.

421719448 is a deficient number, since it is larger than the sum of its proper divisors (372015032).

421719448 is a wasteful number, since it uses less digits than its factorization.

421719448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200706 (or 200702 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 421719448 is about 20535.8089200304. The cubic root of 421719448 is about 749.9078097054.

The spelling of 421719448 in words is "four hundred twenty-one million, seven hundred nineteen thousand, four hundred forty-eight".