75275640 has 96 divisors (see below), whose sum is σ = 266900400. Its totient is φ = 18247680.

The previous prime is 75275633. The next prime is 75275659. The reversal of 75275640 is 4657257.

75275640 is a `hidden beast` number, since 7 + 5 + 2 + 7 + 5 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 75275595 and 75275604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5545 + ... + 13464.

Almost surely, 2^75275640 is an apocalyptic number.

It is an amenable number.

75275640 is an abundant number, since it is smaller than the sum of its proper divisors (191624760).

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

75275640 is a wasteful number, since it uses less digits than its factorization.

75275640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19037 (or 19030 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 75275640 is about 8676.1535256126. The cubic root of 75275640 is about 422.2323316549.

The spelling of 75275640 in words is "seventy-five million, two hundred seventy-five thousand, six hundred forty".