3138688450 has 24 divisors (see below), whose sum is σ = 5839818192. Its totient is φ = 1255075920.

The previous prime is 3138688439. The next prime is 3138688453. The reversal of 3138688450 is 548868313.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 3138688450.

It is not an unprimeable number, because it can be changed into a prime (3138688453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187317 + ... + 203383.

It is an arithmetic number, because the mean of its divisors is an integer number (243325758).

Almost surely, 2^3138688450 is an apocalyptic number.

3138688450 is a deficient number, since it is larger than the sum of its proper divisors (2701129742).

3138688450 is a wasteful number, since it uses less digits than its factorization.

3138688450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19986 (or 19981 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 3138688450 is about 56023.9988754819. The cubic root of 3138688450 is about 1464.1404409176.

The spelling of 3138688450 in words is "three billion, one hundred thirty-eight million, six hundred eighty-eight thousand, four hundred fifty".