423387744 has 192 divisors, whose sum is σ = 1259665344. Its totient is φ = 123641856.

The previous prime is 423387683. The next prime is 423387787. The reversal of 423387744 is 447783324.

It is a junction number, because it is equal to n+sod(n) for n = 423387696 and 423387705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2447242 + ... + 2447414.

It is an arithmetic number, because the mean of its divisors is an integer number (6560757).

Almost surely, 2^423387744 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 423387744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (629832672).

423387744 is an abundant number, since it is smaller than the sum of its proper divisors (836277600).

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

423387744 is a wasteful number, since it uses less digits than its factorization.

423387744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 281 counting only the distinct ones).

The product of its digits is 451584, while the sum is 42.

The square root of 423387744 is about 20576.3880212247. The cubic root of 423387744 is about 750.8953715433.

The spelling of 423387744 in words is "four hundred twenty-three million, three hundred eighty-seven thousand, seven hundred forty-four".