1109402 has 16 divisors (see below), whose sum is σ = 1921920. Its totient is φ = 470448.

The previous prime is 1109401. The next prime is 1109411. The reversal of 1109402 is 2049011.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1109401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1163 + ... + 1889.

It is an arithmetic number, because the mean of its divisors is an integer number (120120).

2^1109402 is an apocalyptic number.

1109402 is a deficient number, since it is larger than the sum of its proper divisors (812518).

1109402 is a wasteful number, since it uses less digits than its factorization.

1109402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1109402 is about 1053.2815388110. The cubic root of 1109402 is about 103.5212835566.

The spelling of 1109402 in words is "one million, one hundred nine thousand, four hundred two".