630861430 has 8 divisors (see below), whose sum is σ = 1135550592. Its totient is φ = 252344568.

The previous prime is 630861419. The next prime is 630861431. The reversal of 630861430 is 34168036.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×630861430² = 795972287723289800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 630861392 and 630861401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630861431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31543062 + ... + 31543081.

It is an arithmetic number, because the mean of its divisors is an integer number (141943824).

Almost surely, 2^630861430 is an apocalyptic number.

630861430 is a deficient number, since it is larger than the sum of its proper divisors (504689162).

630861430 is a wasteful number, since it uses less digits than its factorization.

630861430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63086150.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 630861430 is about 25116.9550304172. The cubic root of 630861430 is about 857.6524357346.

It can be divided in two parts, 63086 and 1430, that added together give a square (64516 = 254²).

The spelling of 630861430 in words is "six hundred thirty million, eight hundred sixty-one thousand, four hundred thirty".