2538403156 has 12 divisors (see below), whose sum is σ = 4457368692. Its totient is φ = 1264869248.

The previous prime is 2538403141. The next prime is 2538403157. The reversal of 2538403156 is 6513048352.

It can be written as a sum of positive squares in 2 ways, for example, as 2321312400 + 217090756 = 48180^2 + 14734^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2538403157) 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 3 ways as a sum of consecutive naturals, for example, 1081765 + ... + 1084108.

It is an arithmetic number, because the mean of its divisors is an integer number (371447391).

Almost surely, 2^2538403156 is an apocalyptic number.

It is an amenable number.

2538403156 is a deficient number, since it is larger than the sum of its proper divisors (1918965536).

2538403156 is a wasteful number, since it uses less digits than its factorization.

2538403156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166170 (or 2166168 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 2538403156 is about 50382.5679774265. The cubic root of 2538403156 is about 1364.1230048484.

The spelling of 2538403156 in words is "two billion, five hundred thirty-eight million, four hundred three thousand, one hundred fifty-six".