630078074 has 4 divisors (see below), whose sum is σ = 945117114. Its totient is φ = 315039036.

The previous prime is 630078073. The next prime is 630078083. The reversal of 630078074 is 470870036.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 607277449 + 22800625 = 24643^2 + 4775^2 .

It is not an unprimeable number, because it can be changed into a prime (630078073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157519517 + ... + 157519520.

Almost surely, 2^630078074 is an apocalyptic number.

630078074 is a deficient number, since it is larger than the sum of its proper divisors (315039040).

630078074 is a wasteful number, since it uses less digits than its factorization.

630078074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315039039.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 630078074 is about 25101.3560191477. The cubic root of 630078074 is about 857.2972993954.

The spelling of 630078074 in words is "six hundred thirty million, seventy-eight thousand, seventy-four".