75015740 has 12 divisors (see below), whose sum is σ = 157533096. Its totient is φ = 30006288.

The previous prime is 75015739. The next prime is 75015769. The reversal of 75015740 is 4751057.

It is a super-2 number, since 2×75015740² = 11254722495495200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1875374 + ... + 1875413.

It is an arithmetic number, because the mean of its divisors is an integer number (13127758).

Almost surely, 2^75015740 is an apocalyptic number.

It is an amenable number.

75015740 is an abundant number, since it is smaller than the sum of its proper divisors (82517356).

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

75015740 is a wasteful number, since it uses less digits than its factorization.

75015740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750796 (or 3750794 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 75015740 is about 8661.1627394940. The cubic root of 75015740 is about 421.7458319877.

Adding to 75015740 its reverse (4751057), we get a palindrome (79766797).

The spelling of 75015740 in words is "seventy-five million, fifteen thousand, seven hundred forty".