7940500 has 24 divisors (see below), whose sum is σ = 17343144. Its totient is φ = 3176000.

The previous prime is 7940483. The next prime is 7940503. The reversal of 7940500 is 50497.

It can be written as a sum of positive squares in 4 ways, for example, as 21904 + 7918596 = 148^2 + 2814^2 .

It is a sliding number, since 7940500 = 128000 + 7812500 and 1/128000 + 1/7812500 = 0.000007940500.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7940503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7441 + ... + 8440.

It is an arithmetic number, because the mean of its divisors is an integer number (722631).

Almost surely, 2^7940500 is an apocalyptic number.

It is an amenable number.

7940500 is an abundant number, since it is smaller than the sum of its proper divisors (9402644).

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

7940500 is a wasteful number, since it uses less digits than its factorization.

7940500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15900 (or 15888 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 7940500 is about 2817.8892810045. The cubic root of 7940500 is about 199.5029323087.

Adding to 7940500 its reverse (50497), we get a palindrome (7990997).

The spelling of 7940500 in words is "seven million, nine hundred forty thousand, five hundred".