630371402 has 4 divisors (see below), whose sum is σ = 945557106. Its totient is φ = 315185700.

The previous prime is 630371383. The next prime is 630371429. The reversal of 630371402 is 204173036.

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., 327646201 + 302725201 = 18101^2 + 17399^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157592849 + ... + 157592852.

Almost surely, 2^630371402 is an apocalyptic number.

630371402 is a deficient number, since it is larger than the sum of its proper divisors (315185704).

630371402 is a wasteful number, since it uses less digits than its factorization.

630371402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315185703.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 630371402 is about 25107.1982108717. The cubic root of 630371402 is about 857.4303148102.

The spelling of 630371402 in words is "six hundred thirty million, three hundred seventy-one thousand, four hundred two".