75633940 has 24 divisors (see below), whose sum is σ = 159505920. Its totient is φ = 30125088.

The previous prime is 75633911. The next prime is 75633941. The reversal of 75633940 is 4933657.

It is a self number, because there is not a number n which added to its sum of digits gives 75633940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75633941) 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, 3132 + ... + 12691.

It is an arithmetic number, because the mean of its divisors is an integer number (6646080).

Almost surely, 2^75633940 is an apocalyptic number.

It is an amenable number.

75633940 is an abundant number, since it is smaller than the sum of its proper divisors (83871980).

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

75633940 is a wasteful number, since it uses less digits than its factorization.

75633940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16071 (or 16069 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 75633940 is about 8696.7775641326. Note that the first 3 decimals coincide. The cubic root of 75633940 is about 422.9011909965.

The spelling of 75633940 in words is "seventy-five million, six hundred thirty-three thousand, nine hundred forty".