2540382942 has 32 divisors (see below), whose sum is σ = 5251628160. Its totient is φ = 818788320.

The previous prime is 2540382907. The next prime is 2540382961. The reversal of 2540382942 is 2492830452.

It is a self number, because there is not a number n which added to its sum of digits gives 2540382942.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37228 + ... + 80415.

It is an arithmetic number, because the mean of its divisors is an integer number (164113380).

Almost surely, 2^2540382942 is an apocalyptic number.

2540382942 is an abundant number, since it is smaller than the sum of its proper divisors (2711245218).

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

2540382942 is a wasteful number, since it uses less digits than its factorization.

2540382942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117768.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 2540382942 is about 50402.2116776635. The cubic root of 2540382942 is about 1364.4775544938.

It can be divided in two parts, 25403 and 82942, that added together give a triangular number (108345 = T₄₆₅).

The spelling of 2540382942 in words is "two billion, five hundred forty million, three hundred eighty-two thousand, nine hundred forty-two".