7488138 has 16 divisors (see below), whose sum is σ = 17115840. Its totient is φ = 2139456.

The previous prime is 7488137. The next prime is 7488163. The reversal of 7488138 is 8318847.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 7488096 and 7488105.

It is not an unprimeable number, because it can be changed into a prime (7488137) 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, 89103 + ... + 89186.

It is an arithmetic number, because the mean of its divisors is an integer number (1069740).

Almost surely, 2^7488138 is an apocalyptic number.

7488138 is an abundant number, since it is smaller than the sum of its proper divisors (9627702).

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

7488138 is a wasteful number, since it uses less digits than its factorization.

7488138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178301.

The product of its digits is 43008, while the sum is 39.

The square root of 7488138 is about 2736.4462355398. The cubic root of 7488138 is about 195.6401316947.

It can be divided in two parts, 7488 and 138, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 7488138 in words is "seven million, four hundred eighty-eight thousand, one hundred thirty-eight".