75424342 has 32 divisors (see below), whose sum is σ = 137479680. Its totient is φ = 30295680.

The previous prime is 75424309. The next prime is 75424343. The reversal of 75424342 is 24342457.

It is a happy number.

It is a super-2 number, since 2×75424342² = 11377662732265928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75424343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73509 + ... + 74527.

It is an arithmetic number, because the mean of its divisors is an integer number (4296240).

Almost surely, 2^75424342 is an apocalyptic number.

75424342 is a deficient number, since it is larger than the sum of its proper divisors (62055338).

75424342 is a wasteful number, since it uses less digits than its factorization.

75424342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356.

The product of its digits is 26880, while the sum is 31.

The square root of 75424342 is about 8684.7188785821. The cubic root of 75424342 is about 422.5101793703.

Adding to 75424342 its reverse (24342457), we get a palindrome (99766799).

The spelling of 75424342 in words is "seventy-five million, four hundred twenty-four thousand, three hundred forty-two".