869733440 has 56 divisors (see below), whose sum is σ = 2073612312. Its totient is φ = 347463680.

The previous prime is 869733421. The next prime is 869733467. The reversal of 869733440 is 44337968.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25482304 + 844251136 = 5048^2 + 29056^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 869733391 and 869733400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434522 + ... + 436518.

Almost surely, 2^869733440 is an apocalyptic number.

869733440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

869733440 is an abundant number, since it is smaller than the sum of its proper divisors (1203878872).

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

869733440 is a wasteful number, since it uses less digits than its factorization.

869733440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3375 (or 3365 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 869733440 is about 29491.2434461486. The cubic root of 869733440 is about 954.5427633099.

The spelling of 869733440 in words is "eight hundred sixty-nine million, seven hundred thirty-three thousand, four hundred forty".