11663740 has 24 divisors (see below), whose sum is σ = 26721072. Its totient is φ = 4241280.

The previous prime is 11663731. The next prime is 11663837. The reversal of 11663740 is 4736611.

It is a junction number, because it is equal to n+sod(n) for n = 11663699 and 11663708.

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, 26289 + ... + 26728.

It is an arithmetic number, because the mean of its divisors is an integer number (1113378).

Almost surely, 2^11663740 is an apocalyptic number.

11663740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11663740 is an abundant number, since it is smaller than the sum of its proper divisors (15057332).

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

11663740 is a wasteful number, since it uses less digits than its factorization.

11663740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53037 (or 53035 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 11663740 is about 3415.2218083164. The cubic root of 11663740 is about 226.7841038890.

It can be divided in two parts, 11663 and 740, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 11663740 in words is "eleven million, six hundred sixty-three thousand, seven hundred forty".