506481940 has 12 divisors (see below), whose sum is σ = 1063612116. Its totient is φ = 202592768.

The previous prime is 506481931. The next prime is 506481947. The reversal of 506481940 is 49184605.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 380952324 + 125529616 = 19518^2 + 11204^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 506481940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506481947) 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, 12662029 + ... + 12662068.

It is an arithmetic number, because the mean of its divisors is an integer number (88634343).

Almost surely, 2^506481940 is an apocalyptic number.

It is an amenable number.

506481940 is an abundant number, since it is smaller than the sum of its proper divisors (557130176).

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

506481940 is a wasteful number, since it uses less digits than its factorization.

506481940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25324106 (or 25324104 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 506481940 is about 22505.1536320017. The cubic root of 506481940 is about 797.1156233795.

The spelling of 506481940 in words is "five hundred six million, four hundred eighty-one thousand, nine hundred forty".