1090008 has 24 divisors (see below), whose sum is σ = 2952300. Its totient is φ = 363312.

The previous prime is 1090003. The next prime is 1090013. The reversal of 1090008 is 8000901.

It is an interprime number because it is at equal distance from previous prime (1090003) and next prime (1090013).

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7498 + ... + 7641.

2^1090008 is an apocalyptic number.

1090008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1090008 is an abundant number, since it is smaller than the sum of its proper divisors (1862292).

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

1090008 is a wasteful number, since it uses less digits than its factorization.

1090008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15151 (or 15144 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 1090008 is about 1044.0344821892. The cubic root of 1090008 is about 102.9144984345.

Adding to 1090008 its sum of digits (18), we get a triangular number (1090026 = T₁₄₇₆).

Subtracting from 1090008 its product of nonzero digits (72), we obtain a square (1089936 = 1044²).

Adding to 1090008 its reverse (8000901), we get a palindrome (9090909).

The spelling of 1090008 in words is "one million, ninety thousand, eight".