2999231894 has 4 divisors (see below), whose sum is σ = 4498847844. Its totient is φ = 1499615946.

The previous prime is 2999231867. The next prime is 2999231899. The reversal of 2999231894 is 4981329992.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2999231899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749807972 + ... + 749807975.

It is an arithmetic number, because the mean of its divisors is an integer number (1124711961).

Almost surely, 2^2999231894 is an apocalyptic number.

2999231894 is a deficient number, since it is larger than the sum of its proper divisors (1499615950).

2999231894 is a wasteful number, since it uses less digits than its factorization.

2999231894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499615949.

The product of its digits is 2519424, while the sum is 56.

The square root of 2999231894 is about 54765.2434852617. The cubic root of 2999231894 is about 1442.1264708510.

The spelling of 2999231894 in words is "two billion, nine hundred ninety-nine million, two hundred thirty-one thousand, eight hundred ninety-four".