11890830 has 48 divisors (see below), whose sum is σ = 33201360. Its totient is φ = 2717568.

The previous prime is 11890807. The next prime is 11890873. The reversal of 11890830 is 3809811.

11890830 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2575 + ... + 5514.

It is an arithmetic number, because the mean of its divisors is an integer number (691695).

Almost surely, 2^11890830 is an apocalyptic number.

11890830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11890830 is an abundant number, since it is smaller than the sum of its proper divisors (21310530).

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

11890830 is a wasteful number, since it uses less digits than its factorization.

11890830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8113 (or 8106 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 11890830 is about 3448.3082808821. The cubic root of 11890830 is about 228.2464632454.

It can be divided in two parts, 11890 and 830, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 11890830 in words is "eleven million, eight hundred ninety thousand, eight hundred thirty".