1029949726 has 16 divisors (see below), whose sum is σ = 1761634224. Its totient is φ = 447398784.

The previous prime is 1029949721. The next prime is 1029949733. The reversal of 1029949726 is 6279499201.

It is a self number, because there is not a number n which added to its sum of digits gives 1029949726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029949721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1164660 + ... + 1165543.

It is an arithmetic number, because the mean of its divisors is an integer number (110102139).

Almost surely, 2^1029949726 is an apocalyptic number.

1029949726 is a deficient number, since it is larger than the sum of its proper divisors (731684498).

1029949726 is a wasteful number, since it uses less digits than its factorization.

1029949726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330235.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 1029949726 is about 32092.8298222516. The cubic root of 1029949726 is about 1009.8852027811.

It can be divided in two parts, 10299 and 49726, that added together give a square (60025 = 245²).

The spelling of 1029949726 in words is "one billion, twenty-nine million, nine hundred forty-nine thousand, seven hundred twenty-six".