421141408 has 96 divisors (see below), whose sum is σ = 928174464. Its totient is φ = 187072512.

The previous prime is 421141397. The next prime is 421141423. The reversal of 421141408 is 804141124.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1213491 + ... + 1213837.

It is an arithmetic number, because the mean of its divisors is an integer number (9668484).

Almost surely, 2^421141408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421141408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464087232).

421141408 is an abundant number, since it is smaller than the sum of its proper divisors (507033056).

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

421141408 is a wasteful number, since it uses less digits than its factorization.

421141408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 421141408 is about 20521.7301414866. The cubic root of 421141408 is about 749.5650265944.

The spelling of 421141408 in words is "four hundred twenty-one million, one hundred forty-one thousand, four hundred eight".