75042700 has 36 divisors (see below), whose sum is σ = 165926880. Its totient is φ = 29448640.

The previous prime is 75042683. The next prime is 75042713. The reversal of 75042700 is 724057.

75042700 = 191² + 192² + ... + 614².

It is a Harshad number since it is a multiple of its sum of digits (25).

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 11 ways as a sum of consecutive naturals, for example, 1780 + ... + 12379.

It is an arithmetic number, because the mean of its divisors is an integer number (4609080).

Almost surely, 2^75042700 is an apocalyptic number.

It is an amenable number.

75042700 is an abundant number, since it is smaller than the sum of its proper divisors (90884180).

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

75042700 is a wasteful number, since it uses less digits than its factorization.

75042700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14226 (or 14219 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 75042700 is about 8662.7189727014. The cubic root of 75042700 is about 421.7963498558.

Adding to 75042700 its reverse (724057), we get a palindrome (75766757).

The spelling of 75042700 in words is "seventy-five million, forty-two thousand, seven hundred".