424081788 has 48 divisors (see below), whose sum is σ = 1071665280. Its totient is φ = 129749184.

The previous prime is 424081787. The next prime is 424081789. The reversal of 424081788 is 887180424.

It is an interprime number because it is at equal distance from previous prime (424081787) and next prime (424081789).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424081787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20331 + ... + 35517.

It is an arithmetic number, because the mean of its divisors is an integer number (22326360).

Almost surely, 2^424081788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424081788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535832640).

424081788 is an abundant number, since it is smaller than the sum of its proper divisors (647583492).

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

424081788 is a wasteful number, since it uses less digits than its factorization.

424081788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15386 (or 15384 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 42.

The square root of 424081788 is about 20593.2461744136. The cubic root of 424081788 is about 751.3054526284.

The spelling of 424081788 in words is "four hundred twenty-four million, eighty-one thousand, seven hundred eighty-eight".