1088538 has 16 divisors (see below), whose sum is σ = 2375136. Its totient is φ = 329840.

The previous prime is 1088537. The next prime is 1088543. The reversal of 1088538 is 8358801.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 1088499 and 1088508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1088533) 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, 8181 + ... + 8312.

It is an arithmetic number, because the mean of its divisors is an integer number (148446).

2^1088538 is an apocalyptic number.

1088538 is an abundant number, since it is smaller than the sum of its proper divisors (1286598).

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

1088538 is a wasteful number, since it uses less digits than its factorization.

1088538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16509.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 1088538 is about 1043.3302449369. The cubic root of 1088538 is about 102.8682136452.

It can be divided in two parts, 108 and 8538, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 1088538 in words is "one million, eighty-eight thousand, five hundred thirty-eight".