630453942 has 40 divisors (see below), whose sum is σ = 1495789416. Its totient is φ = 197788608.

The previous prime is 630453907. The next prime is 630453977. The reversal of 630453942 is 249354036.

It is an interprime number because it is at equal distance from previous prime (630453907) and next prime (630453977).

It is a junction number, because it is equal to n+sod(n) for n = 630453897 and 630453906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 111708 + ... + 117215.

Almost surely, 2^630453942 is an apocalyptic number.

630453942 is an abundant number, since it is smaller than the sum of its proper divisors (865335474).

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

630453942 is a wasteful number, since it uses less digits than its factorization.

630453942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228954 (or 228945 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 630453942 is about 25108.8419087779. The cubic root of 630453942 is about 857.4677367751.

The spelling of 630453942 in words is "six hundred thirty million, four hundred fifty-three thousand, nine hundred forty-two".