420158544 has 80 divisors (see below), whose sum is σ = 1177008000. Its totient is φ = 128383488.

The previous prime is 420158539. The next prime is 420158561. The reversal of 420158544 is 445851024.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 90717 + ... + 95235.

It is an arithmetic number, because the mean of its divisors is an integer number (14712600).

Almost surely, 2^420158544 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 420158544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (588504000).

420158544 is an abundant number, since it is smaller than the sum of its proper divisors (756849456).

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

420158544 is a wasteful number, since it uses less digits than its factorization.

420158544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4692 (or 4686 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 33.

The square root of 420158544 is about 20497.7692444812. The cubic root of 420158544 is about 748.9814582787.

The spelling of 420158544 in words is "four hundred twenty million, one hundred fifty-eight thousand, five hundred forty-four".