623450880 has 432 divisors, whose sum is σ = 2437396416. Its totient is φ = 145981440.

The previous prime is 623450833. The next prime is 623450887. The reversal of 623450880 is 88054326.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (623450887) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3444390 + ... + 3444570.

Almost surely, 2^623450880 is an apocalyptic number.

623450880 is a gapful number since it is divisible by the number (60) 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 623450880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1218698208).

623450880 is an abundant number, since it is smaller than the sum of its proper divisors (1813945536).

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

623450880 is a wasteful number, since it uses less digits than its factorization.

623450880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 623450880 is about 24968.9983779887. The cubic root of 623450880 is about 854.2810001332.

The spelling of 623450880 in words is "six hundred twenty-three million, four hundred fifty thousand, eight hundred eighty".