421340298 has 16 divisors (see below), whose sum is σ = 856495776. Its totient is φ = 138144240.

The previous prime is 421340281. The next prime is 421340317. The reversal of 421340298 is 892043124.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575236 + ... + 575967.

It is an arithmetic number, because the mean of its divisors is an integer number (53530986).

Almost surely, 2^421340298 is an apocalyptic number.

421340298 is an abundant number, since it is smaller than the sum of its proper divisors (435155478).

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

421340298 is a wasteful number, since it uses less digits than its factorization.

421340298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151269.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 421340298 is about 20526.5754084796. The cubic root of 421340298 is about 749.6830055938.

The spelling of 421340298 in words is "four hundred twenty-one million, three hundred forty thousand, two hundred ninety-eight".