11938830 has 32 divisors (see below), whose sum is σ = 28836864. Its totient is φ = 3163296.

The previous prime is 11938793. The next prime is 11938853. The reversal of 11938830 is 3883911.

It is a junction number, because it is equal to n+sod(n) for n = 11938791 and 11938800.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3819 + ... + 6201.

It is an arithmetic number, because the mean of its divisors is an integer number (901152).

Almost surely, 2^11938830 is an apocalyptic number.

11938830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11938830 is an abundant number, since it is smaller than the sum of its proper divisors (16898034).

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

11938830 is a wasteful number, since it uses less digits than its factorization.

11938830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 11938830 is about 3455.2612057557. The cubic root of 11938830 is about 228.5531735793.

The spelling of 11938830 in words is "eleven million, nine hundred thirty-eight thousand, eight hundred thirty".