2033139994 has 4 divisors (see below), whose sum is σ = 3049709994. Its totient is φ = 1016569996.

The previous prime is 2033139967. The next prime is 2033140013. The reversal of 2033139994 is 4999313302.

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., 1986039225 + 47100769 = 44565^2 + 6863^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2033139994.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508284997 + ... + 508285000.

Almost surely, 2^2033139994 is an apocalyptic number.

2033139994 is a deficient number, since it is larger than the sum of its proper divisors (1016570000).

2033139994 is a wasteful number, since it uses less digits than its factorization.

2033139994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016569999.

The product of its (nonzero) digits is 157464, while the sum is 43.

The square root of 2033139994 is about 45090.3536690499. The cubic root of 2033139994 is about 1266.8419258727.

The spelling of 2033139994 in words is "two billion, thirty-three million, one hundred thirty-nine thousand, nine hundred ninety-four".