1380630 has 16 divisors (see below), whose sum is σ = 3313584. Its totient is φ = 368160.

The previous prime is 1380629. The next prime is 1380637. The reversal of 1380630 is 360831.

1380630 = 586² + 587² + ... + 589².

It is a super-2 number, since 2×1380630² = 3812278393800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1380597 and 1380606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380637) 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, 22981 + ... + 23040.

It is an arithmetic number, because the mean of its divisors is an integer number (207099).

2^1380630 is an apocalyptic number.

1380630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1380630 is an abundant number, since it is smaller than the sum of its proper divisors (1932954).

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

1380630 is a wasteful number, since it uses less digits than its factorization.

1380630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46031.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1380630 is about 1175.0021276576. The cubic root of 1380630 is about 111.3505676485.

The spelling of 1380630 in words is "one million, three hundred eighty thousand, six hundred thirty".