3630137906 has 4 divisors (see below), whose sum is σ = 5445206862. Its totient is φ = 1815068952.

The previous prime is 3630137897. The next prime is 3630137911. The reversal of 3630137906 is 6097310363.

It is a happy number.

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., 3330328681 + 299809225 = 57709^2 + 17315^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3630137906.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 907534475 + ... + 907534478.

Almost surely, 2^3630137906 is an apocalyptic number.

3630137906 is a deficient number, since it is larger than the sum of its proper divisors (1815068956).

3630137906 is a wasteful number, since it uses less digits than its factorization.

3630137906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815068955.

The product of its (nonzero) digits is 61236, while the sum is 38.

The square root of 3630137906 is about 60250.6257726839. The cubic root of 3630137906 is about 1536.8838299992.

The spelling of 3630137906 in words is "three billion, six hundred thirty million, one hundred thirty-seven thousand, nine hundred six".