630031436 has 6 divisors (see below), whose sum is σ = 1102555020. Its totient is φ = 315015716.

The previous prime is 630031429. The next prime is 630031439. The reversal of 630031436 is 634130036.

It is a super-2 number, since 2×630031436² = 793879220696444192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (630031439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78753926 + ... + 78753933.

It is an arithmetic number, because the mean of its divisors is an integer number (183759170).

Almost surely, 2^630031436 is an apocalyptic number.

It is an amenable number.

630031436 is a deficient number, since it is larger than the sum of its proper divisors (472523584).

630031436 is a wasteful number, since it uses less digits than its factorization.

630031436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157507863 (or 157507861 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 630031436 is about 25100.4270083200. The cubic root of 630031436 is about 857.2761466633.

The spelling of 630031436 in words is "six hundred thirty million, thirty-one thousand, four hundred thirty-six".