501314572440 has 576 divisors, whose sum is σ = 1839235507200. Its totient is φ = 118289487360.

The previous prime is 501314572439. The next prime is 501314572469. The reversal of 501314572440 is 44275413105.

501314572440 is a `hidden beast` number, since 5 + 0 + 1 + 3 + 145 + 72 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 501314572395 and 501314572404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 274993369 + ... + 274995191.

It is an arithmetic number, because the mean of its divisors is an integer number (3193117200).

Almost surely, 2^501314572440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501314572440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (919617753600).

501314572440 is an abundant number, since it is smaller than the sum of its proper divisors (1337920934760).

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

501314572440 is a wasteful number, since it uses less digits than its factorization.

501314572440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028 (or 2010 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

Adding to 501314572440 its reverse (44275413105), we get a palindrome (545589985545).

The spelling of 501314572440 in words is "five hundred one billion, three hundred fourteen million, five hundred seventy-two thousand, four hundred forty".