2251983890 has 32 divisors (see below), whose sum is σ = 4376998080. Its totient is φ = 829289664.

The previous prime is 2251983869. The next prime is 2251983901. The reversal of 2251983890 is 983891522.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26417 + ... + 72123.

It is an arithmetic number, because the mean of its divisors is an integer number (136781190).

Almost surely, 2^2251983890 is an apocalyptic number.

2251983890 is a deficient number, since it is larger than the sum of its proper divisors (2125014190).

2251983890 is a wasteful number, since it uses less digits than its factorization.

2251983890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46106.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 2251983890 is about 47455.0723316275. The cubic root of 2251983890 is about 1310.7557145325.

The spelling of 2251983890 in words is "two billion, two hundred fifty-one million, nine hundred eighty-three thousand, eight hundred ninety".