11838402 has 24 divisors (see below), whose sum is σ = 25765740. Its totient is φ = 3928320.

The previous prime is 11838397. The next prime is 11838413. The reversal of 11838402 is 20483811.

11838402 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in 2 ways, for example, as 9790641 + 2047761 = 3129^2 + 1431^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2974 + ... + 5702.

Almost surely, 2^11838402 is an apocalyptic number.

11838402 is an abundant number, since it is smaller than the sum of its proper divisors (13927338).

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

11838402 is a wasteful number, since it uses less digits than its factorization.

11838402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978 (or 2975 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 11838402 is about 3440.6978943232. The cubic root of 11838402 is about 227.9105142829.

It can be divided in two parts, 1 and 1838402, that added together give a triangular number (1838403 = T₁₉₁₇).

The spelling of 11838402 in words is "eleven million, eight hundred thirty-eight thousand, four hundred two".