11447740 has 12 divisors (see below), whose sum is σ = 24040296. Its totient is φ = 4579088.

The previous prime is 11447731. The next prime is 11447753. The reversal of 11447740 is 4774411.

It is a super-2 number, since 2×11447740² = 262101502215200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11447699 and 11447708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286174 + ... + 286213.

It is an arithmetic number, because the mean of its divisors is an integer number (2003358).

Almost surely, 2^11447740 is an apocalyptic number.

11447740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11447740 is an abundant number, since it is smaller than the sum of its proper divisors (12592556).

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

11447740 is a wasteful number, since it uses less digits than its factorization.

11447740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572396 (or 572394 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 11447740 is about 3383.4509010772. The cubic root of 11447740 is about 225.3754390309.

The spelling of 11447740 in words is "eleven million, four hundred forty-seven thousand, seven hundred forty".