421749080 has 48 divisors (see below), whose sum is σ = 1001542320. Its totient is φ = 159815232.

The previous prime is 421749049. The next prime is 421749127. The reversal of 421749080 is 80947124.

It is a self number, because there is not a number n which added to its sum of digits gives 421749080.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164 + ... + 29043.

It is an arithmetic number, because the mean of its divisors is an integer number (20865465).

Almost surely, 2^421749080 is an apocalyptic number.

421749080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421749080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500771160).

421749080 is an abundant number, since it is smaller than the sum of its proper divisors (579793240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421749080 is a wasteful number, since it uses less digits than its factorization.

421749080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29256 (or 29233 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 421749080 is about 20536.5303788152. The cubic root of 421749080 is about 749.9253733155.

The spelling of 421749080 in words is "four hundred twenty-one million, seven hundred forty-nine thousand, eighty".