719104640 has 32 divisors (see below), whose sum is σ = 1719111060. Its totient is φ = 287641600.

The previous prime is 719104621. The next prime is 719104649. The reversal of 719104640 is 46401917.

It can be written as a sum of positive squares in 2 ways, for example, as 647600704 + 71503936 = 25448^2 + 8456^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×719104640² = 1034222966539059200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 719104597 and 719104606.

It is not an unprimeable number, because it can be changed into a prime (719104649) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 561161 + ... + 562440.

Almost surely, 2^719104640 is an apocalyptic number.

It is an amenable number.

719104640 is an abundant number, since it is smaller than the sum of its proper divisors (1000006420).

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

719104640 is a wasteful number, since it uses less digits than its factorization.

719104640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123620 (or 1123608 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 719104640 is about 26816.1264913484. The cubic root of 719104640 is about 895.9092701496.

The spelling of 719104640 in words is "seven hundred nineteen million, one hundred four thousand, six hundred forty".