2251679340 has 24 divisors (see below), whose sum is σ = 6304702320. Its totient is φ = 600447808.

The previous prime is 2251679293. The next prime is 2251679351. The reversal of 2251679340 is 439761522.

2251679340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18763935 + ... + 18764054.

It is an arithmetic number, because the mean of its divisors is an integer number (262695930).

Almost surely, 2^2251679340 is an apocalyptic number.

2251679340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2251679340 is an abundant number, since it is smaller than the sum of its proper divisors (4053022980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2251679340 is a wasteful number, since it uses less digits than its factorization.

2251679340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37528001 (or 37527999 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 2251679340 is about 47451.8633986064. The cubic root of 2251679340 is about 1310.6966246117.

The spelling of 2251679340 in words is "two billion, two hundred fifty-one million, six hundred seventy-nine thousand, three hundred forty".