1418778242 has 12 divisors (see below), whose sum is σ = 2475623430. Its totient is φ = 608047776.

The previous prime is 1418778191. The next prime is 1418778289. The reversal of 1418778242 is 2428778141.

It can be written as a sum of positive squares in only one way, i.e., 879656281 + 539121961 = 29659^2 + 23219^2 .

It is a super-2 number, since 2×1418778242² = 4025863399945221128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1418778193 and 1418778202.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7238567 + ... + 7238762.

Almost surely, 2^1418778242 is an apocalyptic number.

1418778242 is a deficient number, since it is larger than the sum of its proper divisors (1056845188).

1418778242 is a wasteful number, since it uses less digits than its factorization.

1418778242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14477345 (or 14477338 counting only the distinct ones).

The product of its digits is 200704, while the sum is 44.

The square root of 1418778242 is about 37666.6728289081. The cubic root of 1418778242 is about 1123.6684141770.

It can be divided in two parts, 14187 and 78242, that added together give a palindrome (92429).

The spelling of 1418778242 in words is "one billion, four hundred eighteen million, seven hundred seventy-eight thousand, two hundred forty-two".