1623245008 has 80 divisors (see below), whose sum is σ = 3953854080. Its totient is φ = 632375040.

The previous prime is 1623245003. The next prime is 1623245011. The reversal of 1623245008 is 8005423261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1623245003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143628 + ... + 154516.

It is an arithmetic number, because the mean of its divisors is an integer number (49423176).

Almost surely, 2^1623245008 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 1623245008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1976927040).

1623245008 is an abundant number, since it is smaller than the sum of its proper divisors (2330609072).

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

1623245008 is a wasteful number, since it uses less digits than its factorization.

1623245008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10937 (or 10909 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 1623245008 is about 40289.5148642919. The cubic root of 1623245008 is about 1175.2439530893.

Adding to 1623245008 its reverse (8005423261), we get a palindrome (9628668269).

The spelling of 1623245008 in words is "one billion, six hundred twenty-three million, two hundred forty-five thousand, eight".