421049880 has 384 divisors, whose sum is σ = 1591488000. Its totient is φ = 98703360.

The previous prime is 421049879. The next prime is 421049917. The reversal of 421049880 is 88940124.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5930245 + ... + 5930315.

It is an arithmetic number, because the mean of its divisors is an integer number (4144500).

Almost surely, 2^421049880 is an apocalyptic number.

421049880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is a pronic number, being equal to 20519×20520.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421049880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (795744000).

421049880 is an abundant number, since it is smaller than the sum of its proper divisors (1170438120).

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

421049880 is a wasteful number, since it uses less digits than its factorization.

421049880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 421049880 is about 20519.4999939082. The cubic root of 421049880 is about 749.5107208773.

It can be divided in two parts, 42104 and 9880, that added together give a square (51984 = 228²).

The spelling of 421049880 in words is "four hundred twenty-one million, forty-nine thousand, eight hundred eighty".