2251214842 has 32 divisors (see below), whose sum is σ = 3533544000. Its totient is φ = 1074342528.

The previous prime is 2251214809. The next prime is 2251214843. The reversal of 2251214842 is 2484121522.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2251214843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2145534 + ... + 2146582.

It is an arithmetic number, because the mean of its divisors is an integer number (110423250).

Almost surely, 2^2251214842 is an apocalyptic number.

2251214842 is a deficient number, since it is larger than the sum of its proper divisors (1282329158).

2251214842 is a wasteful number, since it uses less digits than its factorization.

2251214842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470.

The product of its digits is 10240, while the sum is 31.

The square root of 2251214842 is about 47446.9687335240. The cubic root of 2251214842 is about 1310.6064907253.

The spelling of 2251214842 in words is "two billion, two hundred fifty-one million, two hundred fourteen thousand, eight hundred forty-two".