11969530 has 32 divisors (see below), whose sum is σ = 22997520. Its totient is φ = 4469760.

The previous prime is 11969519. The next prime is 11969539. The reversal of 11969530 is 3596911.

It can be written as a sum of positive squares in 8 ways, for example, as 1671849 + 10297681 = 1293^2 + 3209^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (11969539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30576 + ... + 30964.

Almost surely, 2^11969530 is an apocalyptic number.

11969530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11969530 is a deficient number, since it is larger than the sum of its proper divisors (11027990).

11969530 is a wasteful number, since it uses less digits than its factorization.

11969530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 11969530 is about 3459.7008541202. The cubic root of 11969530 is about 228.7489095870.

The spelling of 11969530 in words is "eleven million, nine hundred sixty-nine thousand, five hundred thirty".