2538662490 has 192 divisors, whose sum is σ = 8477554176. Its totient is φ = 512303616.

The previous prime is 2538662459. The next prime is 2538662491. The reversal of 2538662490 is 942668352.

2538662490 is a `hidden beast` number, since 2 + 538 + 6 + 6 + 24 + 90 = 666.

2538662490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2538662491) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 181632 + ... + 195108.

It is an arithmetic number, because the mean of its divisors is an integer number (44153928).

Almost surely, 2^2538662490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2538662490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4238777088).

2538662490 is an abundant number, since it is smaller than the sum of its proper divisors (5938891686).

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

2538662490 is a wasteful number, since it uses less digits than its factorization.

2538662490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13533 (or 13530 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 2538662490 is about 50385.1415597892. The cubic root of 2538662490 is about 1364.1694581246.

The spelling of 2538662490 in words is "two billion, five hundred thirty-eight million, six hundred sixty-two thousand, four hundred ninety".