1860378980 has 24 divisors (see below), whose sum is σ = 3907951488. Its totient is φ = 743931488.

The previous prime is 1860378953. The next prime is 1860379009. The reversal of 1860378980 is 898730681.

It is a happy number.

It is a super-2 number, since 2×1860378980² = 6922019898451680800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67157 + ... + 90723.

It is an arithmetic number, because the mean of its divisors is an integer number (162831312).

Almost surely, 2^1860378980 is an apocalyptic number.

1860378980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1860378980 is an abundant number, since it is smaller than the sum of its proper divisors (2047572508).

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

1860378980 is a wasteful number, since it uses less digits than its factorization.

1860378980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27523 (or 27521 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 1860378980 is about 43132.1107760796. The cubic root of 1860378980 is about 1229.8924664181.

The spelling of 1860378980 in words is "one billion, eight hundred sixty million, three hundred seventy-eight thousand, nine hundred eighty".