11409402 has 8 divisors (see below), whose sum is σ = 22818816. Its totient is φ = 3803132.

The previous prime is 11409401. The next prime is 11409451. The reversal of 11409402 is 20490411.

It is a sphenic number, since it is the product of 3 distinct primes.

11409402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (11409401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 950778 + ... + 950789.

It is an arithmetic number, because the mean of its divisors is an integer number (2852352).

Almost surely, 2^11409402 is an apocalyptic number.

11409402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11409402 is a wasteful number, since it uses less digits than its factorization.

11409402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901572.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 11409402 is about 3377.7806323087. The cubic root of 11409402 is about 225.1235666945.

Adding to 11409402 its reverse (20490411), we get a palindrome (31899813).

It can be divided in two parts, 11409 and 402, that added together give a palindrome (11811).

The spelling of 11409402 in words is "eleven million, four hundred nine thousand, four hundred two".