11903838 has 16 divisors (see below), whose sum is σ = 23846400. Its totient is φ = 3961496.

The previous prime is 11903809. The next prime is 11903849. The reversal of 11903838 is 83830911.

It is a junction number, because it is equal to n+sod(n) for n = 11903799 and 11903808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3763 + ... + 6161.

It is an arithmetic number, because the mean of its divisors is an integer number (1490400).

Almost surely, 2^11903838 is an apocalyptic number.

11903838 is an abundant number, since it is smaller than the sum of its proper divisors (11942562).

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

11903838 is a wasteful number, since it uses less digits than its factorization.

11903838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3231.

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

The square root of 11903838 is about 3450.1939075942. The cubic root of 11903838 is about 228.3296631564.

The spelling of 11903838 in words is "eleven million, nine hundred three thousand, eight hundred thirty-eight".