75634040 has 16 divisors (see below), whose sum is σ = 170176680. Its totient is φ = 30253600.

The previous prime is 75634007. The next prime is 75634057. The reversal of 75634040 is 4043657.

It is a junction number, because it is equal to n+sod(n) for n = 75633994 and 75634012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 945386 + ... + 945465.

Almost surely, 2^75634040 is an apocalyptic number.

It is an amenable number.

75634040 is an abundant number, since it is smaller than the sum of its proper divisors (94542640).

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

75634040 is a wasteful number, since it uses less digits than its factorization.

75634040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890862 (or 1890858 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 75634040 is about 8696.7833133866. The cubic root of 75634040 is about 422.9013773771.

Adding to 75634040 its reverse (4043657), we get a palindrome (79677697).

The spelling of 75634040 in words is "seventy-five million, six hundred thirty-four thousand, forty".