631080450 has 384 divisors, whose sum is σ = 2339850240. Its totient is φ = 120787200.

The previous prime is 631080419. The next prime is 631080451. The reversal of 631080450 is 54080136.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (631080451) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1351117 + ... + 1351583.

It is an arithmetic number, because the mean of its divisors is an integer number (6093360).

Almost surely, 2^631080450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 631080450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1169925120).

631080450 is an abundant number, since it is smaller than the sum of its proper divisors (1708769790).

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

631080450 is a wasteful number, since it uses less digits than its factorization.

631080450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 631080450 is about 25121.3146550892. The cubic root of 631080450 is about 857.7516763885.

The spelling of 631080450 in words is "six hundred thirty-one million, eighty thousand, four hundred fifty".