2508138 has 16 divisors (see below), whose sum is σ = 5573760. Its totient is φ = 836028.

The previous prime is 2508113. The next prime is 2508139. The reversal of 2508138 is 8318052.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2508139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23170 + ... + 23277.

It is an arithmetic number, because the mean of its divisors is an integer number (348360).

2^2508138 is an apocalyptic number.

2508138 is an abundant number, since it is smaller than the sum of its proper divisors (3065622).

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

2508138 is a wasteful number, since it uses less digits than its factorization.

2508138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46458 (or 46452 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 2508138 is about 1583.7102007628. The cubic root of 2508138 is about 135.8679875282.

The spelling of 2508138 in words is "two million, five hundred eight thousand, one hundred thirty-eight".