1418385623 has 4 divisors (see below), whose sum is σ = 1419513480. Its totient is φ = 1417257768.

The previous prime is 1418385569. The next prime is 1418385649. The reversal of 1418385623 is 3265838141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3265838141 = 33457 ⋅97613.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1418385623 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 (1418385923) 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, 562040 + ... + 564557.

It is an arithmetic number, because the mean of its divisors is an integer number (354878370).

Almost surely, 2^1418385623 is an apocalyptic number.

1418385623 is a deficient number, since it is larger than the sum of its proper divisors (1127857).

1418385623 is a wasteful number, since it uses less digits than its factorization.

1418385623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127856.

The product of its digits is 138240, while the sum is 41.

The square root of 1418385623 is about 37661.4607125109. The cubic root of 1418385623 is about 1123.5647535631.

The spelling of 1418385623 in words is "one billion, four hundred eighteen million, three hundred eighty-five thousand, six hundred twenty-three".