765422240 has 96 divisors (see below), whose sum is σ = 2036482560. Its totient is φ = 269337600.

The previous prime is 765422233. The next prime is 765422291. The reversal of 765422240 is 42224567.

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 = 765422197 and 765422206.

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, 47546 + ... + 61574.

It is an arithmetic number, because the mean of its divisors is an integer number (21213360).

Almost surely, 2^765422240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 765422240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1018241280).

765422240 is an abundant number, since it is smaller than the sum of its proper divisors (1271060320).

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

765422240 is a wasteful number, since it uses less digits than its factorization.

765422240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14086 (or 14078 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 765422240 is about 27666.2653786159. The cubic root of 765422240 is about 914.7456627348.

The spelling of 765422240 in words is "seven hundred sixty-five million, four hundred twenty-two thousand, two hundred forty".