2040397558 has 16 divisors (see below), whose sum is σ = 3198412800. Its totient is φ = 975269736.

The previous prime is 2040397553. The next prime is 2040397561. The reversal of 2040397558 is 8557930402.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040397553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248358 + ... + 256441.

It is an arithmetic number, because the mean of its divisors is an integer number (199900800).

Almost surely, 2^2040397558 is an apocalyptic number.

2040397558 is a deficient number, since it is larger than the sum of its proper divisors (1158015242).

2040397558 is a wasteful number, since it uses less digits than its factorization.

2040397558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504891.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 2040397558 is about 45170.7599891788. The cubic root of 2040397558 is about 1268.3475228095.

The spelling of 2040397558 in words is "two billion, forty million, three hundred ninety-seven thousand, five hundred fifty-eight".