1863480 has 64 divisors (see below), whose sum is σ = 5715360. Its totient is φ = 485888.

The previous prime is 1863479. The next prime is 1863481. The reversal of 1863480 is 843681.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1863479) and next prime (1863481).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1863481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6214 + ... + 6506.

2^1863480 is an apocalyptic number.

1863480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1863480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2857680).

1863480 is an abundant number, since it is smaller than the sum of its proper divisors (3851880).

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

1863480 is a wasteful number, since it uses less digits than its factorization.

1863480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1863480 is about 1365.0934033977. The cubic root of 1863480 is about 123.0575446253.

The spelling of 1863480 in words is "one million, eight hundred sixty-three thousand, four hundred eighty".