11839440 has 40 divisors (see below), whose sum is σ = 36703008. Its totient is φ = 3157120.

The previous prime is 11839433. The next prime is 11839469. The reversal of 11839440 is 4493811.

It is a happy number.

11839440 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 11839398 and 11839407.

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, 24426 + ... + 24905.

Almost surely, 2^11839440 is an apocalyptic number.

11839440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11839440 is an abundant number, since it is smaller than the sum of its proper divisors (24863568).

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

11839440 is a wasteful number, since it uses less digits than its factorization.

11839440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49347 (or 49341 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 11839440 is about 3440.8487325077. The cubic root of 11839440 is about 227.9171752101.

The spelling of 11839440 in words is "eleven million, eight hundred thirty-nine thousand, four hundred forty".