75463040 has 32 divisors (see below), whose sum is σ = 180405360. Its totient is φ = 30184960.

The previous prime is 75463009. The next prime is 75463049. The reversal of 75463040 is 4036457.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 75462994 and 75463012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75463049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58316 + ... + 59595.

Almost surely, 2^75463040 is an apocalyptic number.

It is an amenable number.

75463040 is an abundant number, since it is smaller than the sum of its proper divisors (104942320).

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

75463040 is a wasteful number, since it uses less digits than its factorization.

75463040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117930 (or 117918 counting only the distinct ones).

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

The square root of 75463040 is about 8686.9465291321. The cubic root of 75463040 is about 422.5824261764.

Adding to 75463040 its reverse (4036457), we get a palindrome (79499497).

The spelling of 75463040 in words is "seventy-five million, four hundred sixty-three thousand, forty".