428098816 has 36 divisors (see below), whose sum is σ = 891690912. Its totient is φ = 204740096.

The previous prime is 428098807. The next prime is 428098817. The reversal of 428098816 is 618890824.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428098817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30466 + ... + 42241.

It is an arithmetic number, because the mean of its divisors is an integer number (24769192).

Almost surely, 2^428098816 is an apocalyptic number.

428098816 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

428098816 is an abundant number, since it is smaller than the sum of its proper divisors (463592096).

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

428098816 is an equidigital number, since it uses as much as digits as its factorization.

428098816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72746 (or 72732 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 428098816 is about 20690.5489535681. The cubic root of 428098816 is about 753.6701974960.

The spelling of 428098816 in words is "four hundred twenty-eight million, ninety-eight thousand, eight hundred sixteen".