1974987850 has 144 divisors (see below), whose sum is σ = 4283538336. Its totient is φ = 671328000.

The previous prime is 1974987823. The next prime is 1974987853. The reversal of 1974987850 is 587894791.

It is not an unprimeable number, because it can be changed into a prime (1974987853) 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 71 ways as a sum of consecutive naturals, for example, 32376820 + ... + 32376880.

It is an arithmetic number, because the mean of its divisors is an integer number (29746794).

Almost surely, 2^1974987850 is an apocalyptic number.

1974987850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1974987850 is an abundant number, since it is smaller than the sum of its proper divisors (2308550486).

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

1974987850 is a wasteful number, since it uses less digits than its factorization.

1974987850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 58.

The square root of 1974987850 is about 44440.8353881877. The cubic root of 1974987850 is about 1254.6467792160.

The spelling of 1974987850 in words is "one billion, nine hundred seventy-four million, nine hundred eighty-seven thousand, eight hundred fifty".