12019380 has 24 divisors (see below), whose sum is σ = 33654432. Its totient is φ = 3205152.

The previous prime is 12019373. The next prime is 12019387. The reversal of 12019380 is 8391021.

It is an interprime number because it is at equal distance from previous prime (12019373) and next prime (12019387).

It is a self number, because there is not a number n which added to its sum of digits gives 12019380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12019387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100102 + ... + 100221.

It is an arithmetic number, because the mean of its divisors is an integer number (1402268).

Almost surely, 2^12019380 is an apocalyptic number.

12019380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12019380 is an abundant number, since it is smaller than the sum of its proper divisors (21635052).

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

12019380 is a wasteful number, since it uses less digits than its factorization.

12019380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200335 (or 200333 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 12019380 is about 3466.8977487085. The cubic root of 12019380 is about 229.0660297886.

The spelling of 12019380 in words is "twelve million, nineteen thousand, three hundred eighty".