719720040 has 64 divisors (see below), whose sum is σ = 2325254400. Its totient is φ = 177161472.

The previous prime is 719720039. The next prime is 719720069. The reversal of 719720040 is 40027917.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229120 + ... + 232239.

It is an arithmetic number, because the mean of its divisors is an integer number (36332100).

Almost surely, 2^719720040 is an apocalyptic number.

It is an amenable number.

719720040 is an abundant number, since it is smaller than the sum of its proper divisors (1605534360).

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

719720040 is a wasteful number, since it uses less digits than its factorization.

719720040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461386 (or 461382 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 719720040 is about 26827.5984761961. The cubic root of 719720040 is about 896.1647662818.

Adding to 719720040 its reverse (40027917), we get a palindrome (759747957).

The spelling of 719720040 in words is "seven hundred nineteen million, seven hundred twenty thousand, forty".