1069440993 has 12 divisors (see below), whose sum is σ = 1550762148. Its totient is φ = 710184960.

The previous prime is 1069440989. The next prime is 1069441001. The reversal of 1069440993 is 3990449601.

It can be written as a sum of positive squares in 2 ways, for example, as 546998544 + 522442449 = 23388^2 + 22857^2 .

It is not a de Polignac number, because 1069440993 - 2² = 1069440989 is a prime.

It is a super-2 number, since 2×1069440993² = 2287408075017652098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1069440293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228868 + ... + 233493.

It is an arithmetic number, because the mean of its divisors is an integer number (129230179).

Almost surely, 2^1069440993 is an apocalyptic number.

It is an amenable number.

1069440993 is a deficient number, since it is larger than the sum of its proper divisors (481321155).

1069440993 is a wasteful number, since it uses less digits than its factorization.

1069440993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462624 (or 462621 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 1069440993 is about 32702.3086799694. The cubic root of 1069440993 is about 1022.6309731539.

The spelling of 1069440993 in words is "one billion, sixty-nine million, four hundred forty thousand, nine hundred ninety-three".