631058328 has 96 divisors (see below), whose sum is σ = 1779289200. Its totient is φ = 201809664.

The previous prime is 631058321. The next prime is 631058339. The reversal of 631058328 is 823850136.

631058328 is a `hidden beast` number, since 63 + 10 + 583 + 2 + 8 = 666.

It is a super-2 number, since 2×631058328² = 796469226676311168, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 631058292 and 631058301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631058321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360351 + ... + 362097.

Almost surely, 2^631058328 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 631058328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (889644600).

631058328 is an abundant number, since it is smaller than the sum of its proper divisors (1148230872).

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

631058328 is a wasteful number, since it uses less digits than its factorization.

631058328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961 (or 1954 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 631058328 is about 25120.8743478407. The cubic root of 631058328 is about 857.7416536810.

The spelling of 631058328 in words is "six hundred thirty-one million, fifty-eight thousand, three hundred twenty-eight".