1868380 has 12 divisors (see below), whose sum is σ = 3923640. Its totient is φ = 747344.

The previous prime is 1868371. The next prime is 1868381. The reversal of 1868380 is 838681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46690 + ... + 46729.

It is an arithmetic number, because the mean of its divisors is an integer number (326970).

2^1868380 is an apocalyptic number.

1868380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1868380 is an abundant number, since it is smaller than the sum of its proper divisors (2055260).

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

1868380 is a wasteful number, since it uses less digits than its factorization.

1868380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93428 (or 93426 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 1868380 is about 1366.8869741131. The cubic root of 1868380 is about 123.1653097078.

The spelling of 1868380 in words is "one million, eight hundred sixty-eight thousand, three hundred eighty".