1814004221390 has 16 divisors (see below), whose sum is σ = 3457278634032. Its totient is φ = 682919236224.

The previous prime is 1814004221389. The next prime is 1814004221423. The reversal of 1814004221390 is 931224004181.

It is a super-2 number, since 2×1814004221390² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1814004221390.

It is a congruent number.

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, 5335306364 + ... + 5335306703.

It is an arithmetic number, because the mean of its divisors is an integer number (216079914627).

Almost surely, 2^{1814004221390} is an apocalyptic number.

1814004221390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1814004221390 is a deficient number, since it is larger than the sum of its proper divisors (1643274412642).

1814004221390 is a wasteful number, since it uses less digits than its factorization.

1814004221390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10670613091.

The product of its (nonzero) digits is 13824, while the sum is 35.

The spelling of 1814004221390 in words is "one trillion, eight hundred fourteen billion, four million, two hundred twenty-one thousand, three hundred ninety".