75040002 has 12 divisors (see below), whose sum is σ = 162586710. Its totient is φ = 25013328.

The previous prime is 75039977. The next prime is 75040003. The reversal of 75040002 is 20004057.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 71723961 + 3316041 = 8469^2 + 1821^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 4168889 = 75040002 / (7 + 5 + 0 + 4 + 0 + 0 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (75040003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2084427 + ... + 2084462.

Almost surely, 2^75040002 is an apocalyptic number.

75040002 is an abundant number, since it is smaller than the sum of its proper divisors (87546708).

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

75040002 is a wasteful number, since it uses less digits than its factorization.

75040002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4168897 (or 4168894 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 75040002 is about 8662.5632465224. The cubic root of 75040002 is about 421.7912948662.

Adding to 75040002 its reverse (20004057), we get a palindrome (95044059).

The spelling of 75040002 in words is "seventy-five million, forty thousand, two".