2251916 has 6 divisors (see below), whose sum is σ = 3940860. Its totient is φ = 1125956.

The previous prime is 2251913. The next prime is 2251927. The reversal of 2251916 is 6191522.

It is a super-2 number, since 2×2251916² = 10142251342112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2251913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281486 + ... + 281493.

It is an arithmetic number, because the mean of its divisors is an integer number (656810).

2^2251916 is an apocalyptic number.

It is an amenable number.

2251916 is a deficient number, since it is larger than the sum of its proper divisors (1688944).

2251916 is a wasteful number, since it uses less digits than its factorization.

2251916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562983 (or 562981 counting only the distinct ones).

The product of its digits is 1080, while the sum is 26.

The square root of 2251916 is about 1500.6385307595. The cubic root of 2251916 is about 131.0742542724.

The spelling of 2251916 in words is "two million, two hundred fifty-one thousand, nine hundred sixteen".