75198040 has 32 divisors (see below), whose sum is σ = 176554080. Its totient is φ = 28771072.

The previous prime is 75198031. The next prime is 75198041. The reversal of 75198040 is 4089157.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 75197987 and 75198005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75198041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39949 + ... + 41788.

It is an arithmetic number, because the mean of its divisors is an integer number (5517315).

Almost surely, 2^75198040 is an apocalyptic number.

It is an amenable number.

75198040 is an abundant number, since it is smaller than the sum of its proper divisors (101356040).

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

75198040 is a wasteful number, since it uses less digits than its factorization.

75198040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81771 (or 81767 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 75198040 is about 8671.6803446622. The cubic root of 75198040 is about 422.0871917647.

The spelling of 75198040 in words is "seventy-five million, one hundred ninety-eight thousand, forty".