75970040 has 32 divisors (see below), whose sum is σ = 171218880. Its totient is φ = 30337152.

The previous prime is 75970039. The next prime is 75970049. The reversal of 75970040 is 4007957.

It is a junction number, because it is equal to n+sod(n) for n = 75969979 and 75970006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75970049) 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, 30689 + ... + 33071.

It is an arithmetic number, because the mean of its divisors is an integer number (5350590).

Almost surely, 2^75970040 is an apocalyptic number.

It is an amenable number.

75970040 is an abundant number, since it is smaller than the sum of its proper divisors (95248840).

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

75970040 is a wasteful number, since it uses less digits than its factorization.

75970040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191 (or 3187 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 75970040 is about 8716.0793938559. The cubic root of 75970040 is about 423.5266909018.

Adding to 75970040 its reverse (4007957), we get a palindrome (79977997).

The spelling of 75970040 in words is "seventy-five million, nine hundred seventy thousand, forty".