428808136 has 32 divisors (see below), whose sum is σ = 888330240. Its totient is φ = 193017088.

The previous prime is 428808103. The next prime is 428808161. The reversal of 428808136 is 631808824.

It is a super-3 number, since 3×428808136³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65416 + ... + 71671.

It is an arithmetic number, because the mean of its divisors is an integer number (27760320).

Almost surely, 2^428808136 is an apocalyptic number.

428808136 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

428808136 is an abundant number, since it is smaller than the sum of its proper divisors (459522104).

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

428808136 is a wasteful number, since it uses less digits than its factorization.

428808136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137133 (or 137129 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 428808136 is about 20707.6830186286. The cubic root of 428808136 is about 754.0862216620.

The spelling of 428808136 in words is "four hundred twenty-eight million, eight hundred eight thousand, one hundred thirty-six".