623146016 has 48 divisors (see below), whose sum is σ = 1323554904. Its totient is φ = 287698944.

The previous prime is 623146009. The next prime is 623146037. The reversal of 623146016 is 610641326.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 585446416 + 37699600 = 24196^2 + 6140^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 623146016.

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, 18026 + ... + 39638.

Almost surely, 2^623146016 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 623146016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (661777452).

623146016 is an abundant number, since it is smaller than the sum of its proper divisors (700408888).

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

623146016 is a wasteful number, since it uses less digits than its factorization.

623146016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21693 (or 21685 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 623146016 is about 24962.8927810861. The cubic root of 623146016 is about 854.1417312168.

The spelling of 623146016 in words is "six hundred twenty-three million, one hundred forty-six thousand, sixteen".