2040640262442 has 48 divisors (see below), whose sum is σ = 4487743802880. Its totient is φ = 670044679200.

The previous prime is 2040640262417. The next prime is 2040640262447. The reversal of 2040640262442 is 2442620460402.

2040640262442 is a `hidden beast` number, since 2 + 0 + 4 + 0 + 6 + 402 + 6 + 244 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2040640262397 and 2040640262406.

It is not an unprimeable number, because it can be changed into a prime (2040640262447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1051909 + ... + 2277672.

It is an arithmetic number, because the mean of its divisors is an integer number (93494662560).

Almost surely, 2^{2040640262442} is an apocalyptic number.

2040640262442 is an abundant number, since it is smaller than the sum of its proper divisors (2447103540438).

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

2040640262442 is a wasteful number, since it uses less digits than its factorization.

2040640262442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330099 (or 3330096 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

The spelling of 2040640262442 in words is "two trillion, forty billion, six hundred forty million, two hundred sixty-two thousand, four hundred forty-two".