1985574048 has 24 divisors (see below), whose sum is σ = 5212132128. Its totient is φ = 661857984.

The previous prime is 1985574037. The next prime is 1985574053. The reversal of 1985574048 is 8404755891.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1985574048² = 7885008600182212608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10341436 + ... + 10341627.

It is an arithmetic number, because the mean of its divisors is an integer number (217172172).

Almost surely, 2^1985574048 is an apocalyptic number.

It is an amenable number.

1985574048 is an abundant number, since it is smaller than the sum of its proper divisors (3226558080).

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

1985574048 is a wasteful number, since it uses less digits than its factorization.

1985574048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20683076 (or 20683068 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 51.

The square root of 1985574048 is about 44559.7806098728. The cubic root of 1985574048 is about 1256.8844771429.

The spelling of 1985574048 in words is "one billion, nine hundred eighty-five million, five hundred seventy-four thousand, forty-eight".