1418350421 has 4 divisors (see below), whose sum is σ = 1418612844. Its totient is φ = 1418088000.

The previous prime is 1418350379. The next prime is 1418350429. The reversal of 1418350421 is 1240538141.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 222159025 + 1196191396 = 14905^2 + 34586^2 .

It is a cyclic number.

It is not a de Polignac number, because 1418350421 - 2¹⁰ = 1418349397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1418350429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122930 + ... + 133971.

It is an arithmetic number, because the mean of its divisors is an integer number (354653211).

Almost surely, 2^1418350421 is an apocalyptic number.

It is an amenable number.

1418350421 is a deficient number, since it is larger than the sum of its proper divisors (262423).

1418350421 is an equidigital number, since it uses as much as digits as its factorization.

1418350421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262422.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 1418350421 is about 37660.9933618326. The cubic root of 1418350421 is about 1123.5554584760. Note that the first 3 decimals are identical.

Adding to 1418350421 its reverse (1240538141), we get a palindrome (2658888562).

The spelling of 1418350421 in words is "one billion, four hundred eighteen million, three hundred fifty thousand, four hundred twenty-one".