1878034466 has 72 divisors (see below), whose sum is σ = 3637515420. Its totient is φ = 724489920.

The previous prime is 1878034463. The next prime is 1878034469. The reversal of 1878034466 is 6644308781.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1878034463) and next prime (1878034469).

It can be written as a sum of positive squares in 2 ways, for example, as 1572519025 + 305515441 = 39655^2 + 17479^2 .

It is a super-3 number, since 3×1878034466³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1878034466.

It is not an unprimeable number, because it can be changed into a prime (1878034463) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1291796 + ... + 1293248.

Almost surely, 2^1878034466 is an apocalyptic number.

1878034466 is a deficient number, since it is larger than the sum of its proper divisors (1759480954).

1878034466 is a wasteful number, since it uses less digits than its factorization.

1878034466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600 (or 1582 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 47.

The square root of 1878034466 is about 43336.2950193022. The cubic root of 1878034466 is about 1233.7708907818.

The spelling of 1878034466 in words is "one billion, eight hundred seventy-eight million, thirty-four thousand, four hundred sixty-six".