1069728436 has 24 divisors (see below), whose sum is σ = 2232478080. Its totient is φ = 438521952.

The previous prime is 1069728431. The next prime is 1069728463. The reversal of 1069728436 is 6348279601.

It is a super-2 number, since 2×1069728436² = 2288637853574012192, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1069728431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829891 + ... + 831178.

It is an arithmetic number, because the mean of its divisors is an integer number (93019920).

Almost surely, 2^1069728436 is an apocalyptic number.

It is an amenable number.

1069728436 is an abundant number, since it is smaller than the sum of its proper divisors (1162749644).

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

1069728436 is a wasteful number, since it uses less digits than its factorization.

1069728436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661103 (or 1661101 counting only the distinct ones).

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

The square root of 1069728436 is about 32706.7032273202. The cubic root of 1069728436 is about 1022.7225854339.

The spelling of 1069728436 in words is "one billion, sixty-nine million, seven hundred twenty-eight thousand, four hundred thirty-six".