75799440 has 60 divisors (see below), whose sum is σ = 254562204. Its totient is φ = 20212992.

The previous prime is 75799439. The next prime is 75799441. The reversal of 75799440 is 4499757.

It is an interprime number because it is at equal distance from previous prime (75799439) and next prime (75799441).

It can be written as a sum of positive squares in 2 ways, for example, as 32080896 + 43718544 = 5664^2 + 6612^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (75799441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51919 + ... + 53358.

Almost surely, 2^75799440 is an apocalyptic number.

It is an amenable number.

75799440 is an abundant number, since it is smaller than the sum of its proper divisors (178762764).

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

75799440 is a wasteful number, since it uses less digits than its factorization.

75799440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105296 (or 105287 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 75799440 is about 8706.2873832650. The cubic root of 75799440 is about 423.2094263334.

The spelling of 75799440 in words is "seventy-five million, seven hundred ninety-nine thousand, four hundred forty".