75385772 has 24 divisors (see below), whose sum is σ = 164478720. Its totient is φ = 29370960.

The previous prime is 75385771. The next prime is 75385799. The reversal of 75385772 is 27758357.

It is a super-3 number, since 3×75385772³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (75385771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122072 + ... + 122687.

It is an arithmetic number, because the mean of its divisors is an integer number (6853280).

Almost surely, 2^75385772 is an apocalyptic number.

It is an amenable number.

75385772 is an abundant number, since it is smaller than the sum of its proper divisors (89092948).

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

75385772 is a wasteful number, since it uses less digits than its factorization.

75385772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244781 (or 244779 counting only the distinct ones).

The product of its digits is 411600, while the sum is 44.

The square root of 75385772 is about 8682.4980276416. The cubic root of 75385772 is about 422.4381469389.

The spelling of 75385772 in words is "seventy-five million, three hundred eighty-five thousand, seven hundred seventy-two".