2045206542 has 16 divisors (see below), whose sum is σ = 4109801472. Its totient is φ = 678504120.

The previous prime is 2045206489. The next prime is 2045206577. The reversal of 2045206542 is 2456025402.

It is a happy number.

2045206542 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 806478 + ... + 809009.

It is an arithmetic number, because the mean of its divisors is an integer number (256862592).

Almost surely, 2^2045206542 is an apocalyptic number.

2045206542 is an abundant number, since it is smaller than the sum of its proper divisors (2064594930).

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

2045206542 is a wasteful number, since it uses less digits than its factorization.

2045206542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615703.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2045206542 is about 45223.9598222004. The cubic root of 2045206542 is about 1269.3431910755.

The spelling of 2045206542 in words is "two billion, forty-five million, two hundred six thousand, five hundred forty-two".