11949720 has 32 divisors (see below), whose sum is σ = 35849520. Its totient is φ = 3186560.

The previous prime is 11949713. The next prime is 11949731. The reversal of 11949720 is 2794911.

11949720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 49671 + ... + 49910.

Almost surely, 2^11949720 is an apocalyptic number.

11949720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11949720 is an abundant number, since it is smaller than the sum of its proper divisors (23899800).

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

11949720 is a wasteful number, since it uses less digits than its factorization.

11949720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99595 (or 99591 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 11949720 is about 3456.8367042717. The cubic root of 11949720 is about 228.6226440294.

The spelling of 11949720 in words is "eleven million, nine hundred forty-nine thousand, seven hundred twenty".