423698688 has 324 divisors, whose sum is σ = 1484311920. Its totient is φ = 120185856.

The previous prime is 423698683. The next prime is 423698711. The reversal of 423698688 is 886896324.

423698688 is a `hidden beast` number, since 423 + 69 + 86 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (324).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (423698683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3048123 + ... + 3048261.

Almost surely, 2^423698688 is an apocalyptic number.

423698688 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 423698688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (742155960).

423698688 is an abundant number, since it is smaller than the sum of its proper divisors (1060613232).

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

423698688 is an equidigital number, since it uses as much as digits as its factorization.

423698688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 151 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The square root of 423698688 is about 20583.9424795154. The cubic root of 423698688 is about 751.0791505009.

The spelling of 423698688 in words is "four hundred twenty-three million, six hundred ninety-eight thousand, six hundred eighty-eight".