11839530 has 32 divisors (see below), whose sum is σ = 28900800. Its totient is φ = 3103232.

The previous prime is 11839507. The next prime is 11839537. The reversal of 11839530 is 3593811.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (11839537) 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, 1575 + ... + 5114.

It is an arithmetic number, because the mean of its divisors is an integer number (903150).

Almost surely, 2^11839530 is an apocalyptic number.

11839530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11839530 is an abundant number, since it is smaller than the sum of its proper divisors (17061270).

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

11839530 is a wasteful number, since it uses less digits than its factorization.

11839530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6758.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 11839530 is about 3440.8618106515. The cubic root of 11839530 is about 227.9177527288.

The spelling of 11839530 in words is "eleven million, eight hundred thirty-nine thousand, five hundred thirty".