1878354240 has 336 divisors, whose sum is σ = 7045342272. Its totient is φ = 422682624.

The previous prime is 1878354227. The next prime is 1878354253. The reversal of 1878354240 is 424538781.

It is an interprime number because it is at equal distance from previous prime (1878354227) and next prime (1878354253).

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 1878354192 and 1878354201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3433647 + ... + 3434193.

Almost surely, 2^1878354240 is an apocalyptic number.

1878354240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1878354240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3522671136).

1878354240 is an abundant number, since it is smaller than the sum of its proper divisors (5166988032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1878354240 is a wasteful number, since it uses less digits than its factorization.

1878354240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 1878354240 is about 43339.9843101033. The cubic root of 1878354240 is about 1233.8409117657.

The spelling of 1878354240 in words is "one billion, eight hundred seventy-eight million, three hundred fifty-four thousand, two hundred forty".