11620530 has 64 divisors (see below), whose sum is σ = 31288320. Its totient is φ = 3068928.

The previous prime is 11620529. The next prime is 11620549. The reversal of 11620530 is 3502611.

11620530 is a `hidden beast` number, since 11 + 620 + 5 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51999 + ... + 52221.

It is an arithmetic number, because the mean of its divisors is an integer number (488880).

Almost surely, 2^11620530 is an apocalyptic number.

11620530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11620530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15644160).

11620530 is an abundant number, since it is smaller than the sum of its proper divisors (19667790).

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

11620530 is a wasteful number, since it uses less digits than its factorization.

11620530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 11620530 is about 3408.8898486164. The cubic root of 11620530 is about 226.5037059172.

The spelling of 11620530 in words is "eleven million, six hundred twenty thousand, five hundred thirty".