1052193989 has 16 divisors (see below), whose sum is σ = 1380871680. Its totient is φ = 776738160.

The previous prime is 1052193977. The next prime is 1052194007. The reversal of 1052193989 is 9893912501.

It is not a de Polignac number, because 1052193989 - 2⁴ = 1052193973 is a prime.

It is a super-2 number, since 2×1052193989² = 2214224380975464242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052193959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358139 + ... + 361064.

It is an arithmetic number, because the mean of its divisors is an integer number (86304480).

Almost surely, 2^1052193989 is an apocalyptic number.

1052193989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1052193989 is a deficient number, since it is larger than the sum of its proper divisors (328677691).

1052193989 is a wasteful number, since it uses less digits than its factorization.

1052193989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719240.

The product of its (nonzero) digits is 174960, while the sum is 47.

The square root of 1052193989 is about 32437.5398111509. The cubic root of 1052193989 is about 1017.1037888937.

The spelling of 1052193989 in words is "one billion, fifty-two million, one hundred ninety-three thousand, nine hundred eighty-nine".