2538156020 has 24 divisors (see below), whose sum is σ = 5336368800. Its totient is φ = 1014073632.

The previous prime is 2538156011. The next prime is 2538156107. The reversal of 2538156020 is 206518352.

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, 56690 + ... + 91049.

It is an arithmetic number, because the mean of its divisors is an integer number (222348700).

Almost surely, 2^2538156020 is an apocalyptic number.

2538156020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2538156020 is an abundant number, since it is smaller than the sum of its proper divisors (2798212780).

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

2538156020 is a wasteful number, since it uses less digits than its factorization.

2538156020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148607 (or 148605 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2538156020 is about 50380.1153234091. The cubic root of 2538156020 is about 1364.0787335982.

The spelling of 2538156020 in words is "two billion, five hundred thirty-eight million, one hundred fifty-six thousand, twenty".