2040640024 has 8 divisors (see below), whose sum is σ = 3826200060. Its totient is φ = 1020320008.

The previous prime is 2040640003. The next prime is 2040640051. The reversal of 2040640024 is 4200460402.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2040639977 and 2040640004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127539994 + ... + 127540009.

Almost surely, 2^2040640024 is an apocalyptic number.

It is an amenable number.

2040640024 is a deficient number, since it is larger than the sum of its proper divisors (1785560036).

2040640024 is a wasteful number, since it uses less digits than its factorization.

2040640024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255080009 (or 255080005 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2040640024 is about 45173.4437916792. The cubic root of 2040640024 is about 1268.3977612166.

The spelling of 2040640024 in words is "two billion, forty million, six hundred forty thousand, twenty-four".