2042645742 has 16 divisors (see below), whose sum is σ = 4539212880. Its totient is φ = 680881896.

The previous prime is 2042645719. The next prime is 2042645767. The reversal of 2042645742 is 2475462402.

2042645742 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 645 + 7 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2042645697 and 2042645706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18913333 + ... + 18913440.

It is an arithmetic number, because the mean of its divisors is an integer number (283700805).

Almost surely, 2^2042645742 is an apocalyptic number.

2042645742 is an abundant number, since it is smaller than the sum of its proper divisors (2496567138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2042645742 is a wasteful number, since it uses less digits than its factorization.

2042645742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37826784 (or 37826778 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

The square root of 2042645742 is about 45195.6385285129. The cubic root of 2042645742 is about 1268.8131889161.

The spelling of 2042645742 in words is "two billion, forty-two million, six hundred forty-five thousand, seven hundred forty-two".