421754298 has 48 divisors (see below), whose sum is σ = 976973760. Its totient is φ = 118901952.

The previous prime is 421754293. The next prime is 421754317. The reversal of 421754298 is 892457124.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (421754293) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261318 + ... + 262926.

It is an arithmetic number, because the mean of its divisors is an integer number (20353620).

Almost surely, 2^421754298 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421754298, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488486880).

421754298 is an abundant number, since it is smaller than the sum of its proper divisors (555219462).

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

421754298 is a wasteful number, since it uses less digits than its factorization.

421754298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779 (or 1700 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 421754298 is about 20536.6574203301. The cubic root of 421754298 is about 749.9284660663.

The spelling of 421754298 in words is "four hundred twenty-one million, seven hundred fifty-four thousand, two hundred ninety-eight".