75660480 has 336 divisors, whose sum is σ = 310652160. Its totient is φ = 17169408.

The previous prime is 75660461. The next prime is 75660509. The reversal of 75660480 is 8406657.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 544251 + ... + 544389.

It is an arithmetic number, because the mean of its divisors is an integer number (924560).

Almost surely, 2^75660480 is an apocalyptic number.

75660480 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75660480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155326080).

75660480 is an abundant number, since it is smaller than the sum of its proper divisors (234991680).

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

75660480 is a wasteful number, since it uses less digits than its factorization.

75660480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 75660480 is about 8698.3032828248. The cubic root of 75660480 is about 422.9506506485.

The spelling of 75660480 in words is "seventy-five million, six hundred sixty thousand, four hundred eighty".