1019452866 has 16 divisors (see below), whose sum is σ = 2146216800. Its totient is φ = 321932448.

The previous prime is 1019452829. The next prime is 1019452871. The reversal of 1019452866 is 6682549101.

It is a super-2 number, since 2×1019452866² = 2078568291991227912, which contains 22 as substring.

It is a Curzon number.

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, 4471171 + ... + 4471398.

It is an arithmetic number, because the mean of its divisors is an integer number (134138550).

Almost surely, 2^1019452866 is an apocalyptic number.

1019452866 is an abundant number, since it is smaller than the sum of its proper divisors (1126763934).

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

1019452866 is a wasteful number, since it uses less digits than its factorization.

1019452866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8942593.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 1019452866 is about 31928.8719813275. The cubic root of 1019452866 is about 1006.4426912544.

The spelling of 1019452866 in words is "one billion, nineteen million, four hundred fifty-two thousand, eight hundred sixty-six".