1090398 has 16 divisors (see below), whose sum is σ = 2192256. Its totient is φ = 361560.

The previous prime is 1090387. The next prime is 1090403. The reversal of 1090398 is 8930901.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1233 + ... + 1923.

It is an arithmetic number, because the mean of its divisors is an integer number (137016).

2^1090398 is an apocalyptic number.

1090398 is an abundant number, since it is smaller than the sum of its proper divisors (1101858).

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

1090398 is a wasteful number, since it uses less digits than its factorization.

1090398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 1090398 is about 1044.2212409255. The cubic root of 1090398 is about 102.9267710871.

The spelling of 1090398 in words is "one million, ninety thousand, three hundred ninety-eight".