1814373730 has 16 divisors (see below), whose sum is σ = 3517093944. Its totient is φ = 669922560.

The previous prime is 1814373727. The next prime is 1814373731. The reversal of 1814373730 is 373734181.

It can be written as a sum of positive squares in 4 ways, for example, as 745672249 + 1068701481 = 27307^2 + 32691^2 .

It is a super-2 number, since 2×1814373730² = 6583904064228225800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1814373730.

It is not an unprimeable number, because it can be changed into a prime (1814373731) 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 7 ways as a sum of consecutive naturals, for example, 6978231 + ... + 6978490.

Almost surely, 2^1814373730 is an apocalyptic number.

1814373730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1814373730 is a deficient number, since it is larger than the sum of its proper divisors (1702720214).

1814373730 is a wasteful number, since it uses less digits than its factorization.

1814373730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13956741.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 1814373730 is about 42595.4660732806. The cubic root of 1814373730 is about 1219.6697417446.

The spelling of 1814373730 in words is "one billion, eight hundred fourteen million, three hundred seventy-three thousand, seven hundred thirty".