428290156800 has 2160 divisors, whose sum is σ = 1876892371200. Its totient is φ = 95252889600.

The previous prime is 428290156799. The next prime is 428290156831. The reversal of 428290156800 is 8651092824.

428290156800 is a `hidden beast` number, since 4 + 2 + 82 + 9 + 0 + 1 + 568 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2160).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 6392390367 + ... + 6392390433.

Almost surely, 2^428290156800 is an apocalyptic number.

428290156800 is a gapful number since it is divisible by the number (40) 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 428290156800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (938446185600).

428290156800 is an abundant number, since it is smaller than the sum of its proper divisors (1448602214400).

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

428290156800 is a wasteful number, since it uses less digits than its factorization.

428290156800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 428290156800 in words is "four hundred twenty-eight billion, two hundred ninety million, one hundred fifty-six thousand, eight hundred".