75339720 has 192 divisors, whose sum is σ = 265749120. Its totient is φ = 19160064.

The previous prime is 75339707. The next prime is 75339739. The reversal of 75339720 is 2793357.

It is a happy number.

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, 223392 + ... + 223728.

It is an arithmetic number, because the mean of its divisors is an integer number (1384110).

Almost surely, 2^75339720 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 75339720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132874560).

75339720 is an abundant number, since it is smaller than the sum of its proper divisors (190409400).

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

75339720 is a wasteful number, since it uses less digits than its factorization.

75339720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 36.

The square root of 75339720 is about 8679.8456207469. The cubic root of 75339720 is about 422.3521091107.

The spelling of 75339720 in words is "seventy-five million, three hundred thirty-nine thousand, seven hundred twenty".