4012380 has 36 divisors (see below), whose sum is σ = 12171432. Its totient is φ = 1069920.

The previous prime is 4012369. The next prime is 4012381. The reversal of 4012380 is 832104.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4012381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10966 + ... + 11325.

Almost surely, 2^4012380 is an apocalyptic number.

It is an amenable number.

4012380 is an abundant number, since it is smaller than the sum of its proper divisors (8159052).

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

4012380 is a wasteful number, since it uses less digits than its factorization.

4012380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22306 (or 22301 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 4012380 is about 2003.0926089425. The cubic root of 4012380 is about 158.9037034091.

Adding to 4012380 its reverse (832104), we get a palindrome (4844484).

The spelling of 4012380 in words is "four million, twelve thousand, three hundred eighty".