1648894233 has 64 divisors (see below), whose sum is σ = 2762362880. Its totient is φ = 853804800.

The previous prime is 1648894229. The next prime is 1648894259. The reversal of 1648894233 is 3324988461.

It is not a de Polignac number, because 1648894233 - 2² = 1648894229 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1648894333) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 899628 + ... + 901458.

It is an arithmetic number, because the mean of its divisors is an integer number (43161920).

Almost surely, 2^1648894233 is an apocalyptic number.

It is an amenable number.

1648894233 is a deficient number, since it is larger than the sum of its proper divisors (1113468647).

1648894233 is a wasteful number, since it uses less digits than its factorization.

1648894233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958.

The product of its digits is 995328, while the sum is 48.

The square root of 1648894233 is about 40606.5786911431. The cubic root of 1648894233 is about 1181.4017223889.

The spelling of 1648894233 in words is "one billion, six hundred forty-eight million, eight hundred ninety-four thousand, two hundred thirty-three".