2538456730 has 16 divisors (see below), whose sum is σ = 4655434824. Its totient is φ = 996224320.

The previous prime is 2538456721. The next prime is 2538456737. The reversal of 2538456730 is 376548352.

It can be written as a sum of positive squares in 4 ways, for example, as 2227745601 + 310711129 = 47199^2 + 17627^2 .

It is not an unprimeable number, because it can be changed into a prime (2538456737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2394241 + ... + 2395300.

Almost surely, 2^2538456730 is an apocalyptic number.

2538456730 is a deficient number, since it is larger than the sum of its proper divisors (2116978094).

2538456730 is a wasteful number, since it uses less digits than its factorization.

2538456730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4789601.

The product of its (nonzero) digits is 604800, while the sum is 43.

The square root of 2538456730 is about 50383.0996466077. The cubic root of 2538456730 is about 1364.1326015656.

The spelling of 2538456730 in words is "two billion, five hundred thirty-eight million, four hundred fifty-six thousand, seven hundred thirty".