505072944 has 30 divisors (see below), whose sum is σ = 1413503156. Its totient is φ = 168357600.

The previous prime is 505072943. The next prime is 505072999. The reversal of 505072944 is 449270505.

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 = 505072899 and 505072908.

It is not an unprimeable number, because it can be changed into a prime (505072943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1753582 + ... + 1753869.

Almost surely, 2^505072944 is an apocalyptic number.

It is an amenable number.

505072944 is an abundant number, since it is smaller than the sum of its proper divisors (908430212).

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

505072944 is a wasteful number, since it uses less digits than its factorization.

505072944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3507465 (or 3507456 counting only the distinct ones).

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

The square root of 505072944 is about 22473.8279783396. The cubic root of 505072944 is about 796.3757642716.

The spelling of 505072944 in words is "five hundred five million, seventy-two thousand, nine hundred forty-four".