421880550 has 192 divisors, whose sum is σ = 1330581504. Its totient is φ = 86054400.

The previous prime is 421880539. The next prime is 421880567. The reversal of 421880550 is 55088124.

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, 422652 + ... + 423648.

It is an arithmetic number, because the mean of its divisors is an integer number (6930112).

Almost surely, 2^421880550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421880550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (665290752).

421880550 is an abundant number, since it is smaller than the sum of its proper divisors (908700954).

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

421880550 is a wasteful number, since it uses less digits than its factorization.

421880550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063 (or 1058 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 421880550 is about 20539.7310108969. The cubic root of 421880550 is about 750.0032888745.

The spelling of 421880550 in words is "four hundred twenty-one million, eight hundred eighty thousand, five hundred fifty".