2251237994 has 8 divisors (see below), whose sum is σ = 3380790720. Its totient is φ = 1124307756.

The previous prime is 2251237993. The next prime is 2251237997. The reversal of 2251237994 is 4997321522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2251237991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653474 + ... + 656909.

It is an arithmetic number, because the mean of its divisors is an integer number (422598840).

Almost surely, 2^2251237994 is an apocalyptic number.

2251237994 is a deficient number, since it is larger than the sum of its proper divisors (1129552726).

2251237994 is a wasteful number, since it uses less digits than its factorization.

2251237994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311244.

The product of its digits is 272160, while the sum is 44.

The square root of 2251237994 is about 47447.2127105481. The cubic root of 2251237994 is about 1310.6109835673.

It can be divided in two parts, 22512 and 37994, that added together give a palindrome (60506).

The spelling of 2251237994 in words is "two billion, two hundred fifty-one million, two hundred thirty-seven thousand, nine hundred ninety-four".