1878282040 has 16 divisors (see below), whose sum is σ = 4226134680. Its totient is φ = 751312800.

The previous prime is 1878282019. The next prime is 1878282041. The reversal of 1878282040 is 402828781.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 46957051 = 1878282040 / (1 + 8 + 7 + 8 + 2 + 8 + 2 + 0 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 1878281984 and 1878282002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1878282041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23478486 + ... + 23478565.

Almost surely, 2^1878282040 is an apocalyptic number.

1878282040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1878282040 is an abundant number, since it is smaller than the sum of its proper divisors (2347852640).

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

1878282040 is a wasteful number, since it uses less digits than its factorization.

1878282040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46957062 (or 46957058 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 1878282040 is about 43339.1513530203. The cubic root of 1878282040 is about 1233.8251028102.

The spelling of 1878282040 in words is "one billion, eight hundred seventy-eight million, two hundred eighty-two thousand, forty".