505494072 has 96 divisors (see below), whose sum is σ = 1406386800. Its totient is φ = 163957248.

The previous prime is 505494053. The next prime is 505494089. The reversal of 505494072 is 270494505.

505494072 is a `hidden beast` number, since 5 + 0 + 549 + 40 + 72 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 529948 + ... + 530900.

Almost surely, 2^505494072 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 505494072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (703193400).

505494072 is an abundant number, since it is smaller than the sum of its proper divisors (900892728).

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

505494072 is a wasteful number, since it uses less digits than its factorization.

505494072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 505494072 is about 22483.1953245085. The cubic root of 505494072 is about 796.5970411969.

The spelling of 505494072 in words is "five hundred five million, four hundred ninety-four thousand, seventy-two".