787272240 has 80 divisors (see below), whose sum is σ = 2443245408. Its totient is φ = 209707008.

The previous prime is 787272217. The next prime is 787272247. The reversal of 787272240 is 42272787.

It is a happy number.

787272240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (787272247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406314 + ... + 408246.

Almost surely, 2^787272240 is an apocalyptic number.

It is an amenable number.

787272240 is an abundant number, since it is smaller than the sum of its proper divisors (1655973168).

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

787272240 is a wasteful number, since it uses less digits than its factorization.

787272240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3646 (or 3640 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 39.

The square root of 787272240 is about 28058.3720126454. The cubic root of 787272240 is about 923.3683394856.

The spelling of 787272240 in words is "seven hundred eighty-seven million, two hundred seventy-two thousand, two hundred forty".