421054452 has 288 divisors, whose sum is σ = 1390188800. Its totient is φ = 106686720.

The previous prime is 421054441. The next prime is 421054477. The reversal of 421054452 is 254450124.

421054452 is a `hidden beast` number, since 4 + 210 + 5 + 445 + 2 = 666.

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, 6902502 + ... + 6902562.

Almost surely, 2^421054452 is an apocalyptic number.

421054452 is a gapful number since it is divisible by the number (42) 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 421054452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (695094400).

421054452 is an abundant number, since it is smaller than the sum of its proper divisors (969134348).

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

421054452 is a wasteful number, since it uses less digits than its factorization.

421054452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 421054452 is about 20519.6113998292. The cubic root of 421054452 is about 749.5134337393.

The spelling of 421054452 in words is "four hundred twenty-one million, fifty-four thousand, four hundred fifty-two".