75440530 has 32 divisors (see below), whose sum is σ = 150579648. Its totient is φ = 26980800.

The previous prime is 75440503. The next prime is 75440567. The reversal of 75440530 is 3504457.

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 15 ways as a sum of consecutive naturals, for example, 1089 + ... + 12331.

It is an arithmetic number, because the mean of its divisors is an integer number (4705614).

Almost surely, 2^75440530 is an apocalyptic number.

75440530 is a deficient number, since it is larger than the sum of its proper divisors (75139118).

75440530 is a wasteful number, since it uses less digits than its factorization.

75440530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11322.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 75440530 is about 8685.6508103884. The cubic root of 75440530 is about 422.5404043849.

Adding to 75440530 its reverse (3504457), we get a palindrome (78944987).

The spelling of 75440530 in words is "seventy-five million, four hundred forty thousand, five hundred thirty".