420642048 has 144 divisors (see below), whose sum is σ = 1168808256. Its totient is φ = 134184960.

The previous prime is 420642041. The next prime is 420642109. The reversal of 420642048 is 840246024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420642041) by changing a digit.

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, 3210943 + ... + 3211073.

It is an arithmetic number, because the mean of its divisors is an integer number (8116724).

Almost surely, 2^420642048 is an apocalyptic number.

420642048 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 420642048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (584404128).

420642048 is an abundant number, since it is smaller than the sum of its proper divisors (748166208).

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

420642048 is a wasteful number, since it uses less digits than its factorization.

420642048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 420642048 is about 20509.5599172678. The cubic root of 420642048 is about 749.2686488436.

The spelling of 420642048 in words is "four hundred twenty million, six hundred forty-two thousand, forty-eight".