2542021994 has 8 divisors (see below), whose sum is σ = 3814034688. Its totient is φ = 1270677100.

The previous prime is 2542021973. The next prime is 2542022003. The reversal of 2542021994 is 4991202452.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157322 + ... + 172725.

It is an arithmetic number, because the mean of its divisors is an integer number (476754336).

Almost surely, 2^2542021994 is an apocalyptic number.

2542021994 is a deficient number, since it is larger than the sum of its proper divisors (1272012694).

2542021994 is a wasteful number, since it uses less digits than its factorization.

2542021994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333900.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 2542021994 is about 50418.4687788116. The cubic root of 2542021994 is about 1364.7709444936.

The spelling of 2542021994 in words is "two billion, five hundred forty-two million, twenty-one thousand, nine hundred ninety-four".