1090401 has 16 divisors (see below), whose sum is σ = 1591296. Its totient is φ = 660096.

The previous prime is 1090387. The next prime is 1090403. The reversal of 1090401 is 1040901.

It is not a de Polignac number, because 1090401 - 2⁷ = 1090273 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1090403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2656 + ... + 3038.

It is an arithmetic number, because the mean of its divisors is an integer number (99456).

2^1090401 is an apocalyptic number.

It is an amenable number.

1090401 is a deficient number, since it is larger than the sum of its proper divisors (500895).

1090401 is a wasteful number, since it uses less digits than its factorization.

1090401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1090401 is about 1044.2226774017. Note that the first 3 decimals coincide. The cubic root of 1090401 is about 102.9268654808.

The spelling of 1090401 in words is "one million, ninety thousand, four hundred one".