2040457556 has 6 divisors (see below), whose sum is σ = 3570800730. Its totient is φ = 1020228776.

The previous prime is 2040457553. The next prime is 2040457609. The reversal of 2040457556 is 6557540402.

It can be written as a sum of positive squares in only one way, i.e., 2039967556 + 490000 = 45166^2 + 700^2 .

It is a super-3 number, since 3×2040457556³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040457553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255057191 + ... + 255057198.

It is an arithmetic number, because the mean of its divisors is an integer number (595133455).

Almost surely, 2^2040457556 is an apocalyptic number.

It is an amenable number.

2040457556 is a deficient number, since it is larger than the sum of its proper divisors (1530343174).

2040457556 is a wasteful number, since it uses less digits than its factorization.

2040457556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510114393 (or 510114391 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 38.

The square root of 2040457556 is about 45171.4241086110. The cubic root of 2040457556 is about 1268.3599546300.

Adding to 2040457556 its reverse (6557540402), we get a palindrome (8597997958).

The spelling of 2040457556 in words is "two billion, forty million, four hundred fifty-seven thousand, five hundred fifty-six".