11867438 has 48 divisors (see below), whose sum is σ = 21546000. Its totient is φ = 4878720.

The previous prime is 11867431. The next prime is 11867447. The reversal of 11867438 is 83476811.

11867438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11867431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133298 + ... + 133386.

It is an arithmetic number, because the mean of its divisors is an integer number (448875).

Almost surely, 2^11867438 is an apocalyptic number.

11867438 is a deficient number, since it is larger than the sum of its proper divisors (9678562).

11867438 is a wasteful number, since it uses less digits than its factorization.

11867438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 150 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 11867438 is about 3444.9148030104. The cubic root of 11867438 is about 228.0966938795.

The spelling of 11867438 in words is "eleven million, eight hundred sixty-seven thousand, four hundred thirty-eight".