1874381688 has 64 divisors (see below), whose sum is σ = 5433004800. Its totient is φ = 597627360.

The previous prime is 1874381687. The next prime is 1874381693. The reversal of 1874381688 is 8861834781.

It is a happy number.

1874381688 is a `hidden beast` number, since 187 + 4 + 381 + 6 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1874381681) 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 15 ways as a sum of consecutive naturals, for example, 183678 + ... + 193613.

It is an arithmetic number, because the mean of its divisors is an integer number (84890700).

Almost surely, 2^1874381688 is an apocalyptic number.

1874381688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1874381688 is an abundant number, since it is smaller than the sum of its proper divisors (3558623112).

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

1874381688 is a wasteful number, since it uses less digits than its factorization.

1874381688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377329 (or 377319 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 54.

The square root of 1874381688 is about 43294.1299485277. The cubic root of 1874381688 is about 1232.9704766168.

The spelling of 1874381688 in words is "one billion, eight hundred seventy-four million, three hundred eighty-one thousand, six hundred eighty-eight".