1069642738 has 32 divisors (see below), whose sum is σ = 1693685376. Its totient is φ = 505663488.

The previous prime is 1069642733. The next prime is 1069642751. The reversal of 1069642738 is 8372469601.

It is a super-2 number, since 2×1069642738² = 2288271173912273288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (1069642733) 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 15 ways as a sum of consecutive naturals, for example, 2044945 + ... + 2045467.

It is an arithmetic number, because the mean of its divisors is an integer number (52927668).

Almost surely, 2^1069642738 is an apocalyptic number.

1069642738 is a deficient number, since it is larger than the sum of its proper divisors (624042638).

1069642738 is a wasteful number, since it uses less digits than its factorization.

1069642738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 1069642738 is about 32705.3931026673. The cubic root of 1069642738 is about 1022.6952739476.

The spelling of 1069642738 in words is "one billion, sixty-nine million, six hundred forty-two thousand, seven hundred thirty-eight".