428449120 has 48 divisors (see below), whose sum is σ = 1104234768. Its totient is φ = 155799040.

The previous prime is 428449117. The next prime is 428449127. The reversal of 428449120 is 21944824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428449127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119959 + ... + 123478.

It is an arithmetic number, because the mean of its divisors is an integer number (23004891).

Almost surely, 2^428449120 is an apocalyptic number.

428449120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

428449120 is an abundant number, since it is smaller than the sum of its proper divisors (675785648).

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

428449120 is a wasteful number, since it uses less digits than its factorization.

428449120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243463 (or 243455 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 428449120 is about 20699.0125368337. The cubic root of 428449120 is about 753.8757121229.

The spelling of 428449120 in words is "four hundred twenty-eight million, four hundred forty-nine thousand, one hundred twenty".