421660848 has 80 divisors (see below), whose sum is σ = 1262030336. Its totient is φ = 118817280.

The previous prime is 421660847. The next prime is 421660849. The reversal of 421660848 is 848066124.

It is an interprime number because it is at equal distance from previous prime (421660847) and next prime (421660849).

It is not an unprimeable number, because it can be changed into a prime (421660847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15933 + ... + 33123.

Almost surely, 2^421660848 is an apocalyptic number.

421660848 is a gapful number since it is divisible by the number (48) 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 421660848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (631015168).

421660848 is an abundant number, since it is smaller than the sum of its proper divisors (840369488).

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

421660848 is a wasteful number, since it uses less digits than its factorization.

421660848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17282 (or 17276 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 421660848 is about 20534.3820944288. The cubic root of 421660848 is about 749.8730736319.

The spelling of 421660848 in words is "four hundred twenty-one million, six hundred sixty thousand, eight hundred forty-eight".