421155152 has 40 divisors (see below), whose sum is σ = 893728512. Its totient is φ = 190668800.

The previous prime is 421155149. The next prime is 421155199. The reversal of 421155152 is 251551124.

It is a super-2 number, since 2×421155152² = 354743324112286208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40577 + ... + 49887.

Almost surely, 2^421155152 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 421155152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446864256).

421155152 is an abundant number, since it is smaller than the sum of its proper divisors (472573360).

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

421155152 is a wasteful number, since it uses less digits than its factorization.

421155152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9587 (or 9581 counting only the distinct ones).

The product of its digits is 2000, while the sum is 26.

The square root of 421155152 is about 20522.0650033080. The cubic root of 421155152 is about 749.5731805537.

The spelling of 421155152 in words is "four hundred twenty-one million, one hundred fifty-five thousand, one hundred fifty-two".