2053439966 has 8 divisors (see below), whose sum is σ = 3082350240. Its totient is φ = 1025989888.

The previous prime is 2053439963. The next prime is 2053440007. The reversal of 2053439966 is 6699343502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2053439966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2053439963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361526 + ... + 367161.

It is an arithmetic number, because the mean of its divisors is an integer number (385293780).

Almost surely, 2^2053439966 is an apocalyptic number.

2053439966 is a deficient number, since it is larger than the sum of its proper divisors (1028910274).

2053439966 is a wasteful number, since it uses less digits than its factorization.

2053439966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730098.

The product of its (nonzero) digits is 1049760, while the sum is 47.

The square root of 2053439966 is about 45314.8978372455. The cubic root of 2053439966 is about 1271.0442495339.

The spelling of 2053439966 in words is "two billion, fifty-three million, four hundred thirty-nine thousand, nine hundred sixty-six".