1918130 has 16 divisors (see below), whose sum is σ = 3495744. Its totient is φ = 757680.

The previous prime is 1918129. The next prime is 1918151. The reversal of 1918130 is 318191.

It is a junction number, because it is equal to n+sod(n) for n = 1918096 and 1918105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326 + ... + 1985.

It is an arithmetic number, because the mean of its divisors is an integer number (218484).

2^1918130 is an apocalyptic number.

1918130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1918130 is a deficient number, since it is larger than the sum of its proper divisors (1577614).

1918130 is a wasteful number, since it uses less digits than its factorization.

1918130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 1918130 is about 1384.9657035465. The cubic root of 1918130 is about 124.2489362645.

It can be divided in two parts, 1918 and 130, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 1918130 in words is "one million, nine hundred eighteen thousand, one hundred thirty".