505428972 has 48 divisors (see below), whose sum is σ = 1267378560. Its totient is φ = 156195072.

The previous prime is 505428949. The next prime is 505428977. The reversal of 505428972 is 279824505.

It is not an unprimeable number, because it can be changed into a prime (505428977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4822 + ... + 32157.

It is an arithmetic number, because the mean of its divisors is an integer number (26403720).

Almost surely, 2^505428972 is an apocalyptic number.

It is an amenable number.

505428972 is an abundant number, since it is smaller than the sum of its proper divisors (761949588).

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

505428972 is a wasteful number, since it uses less digits than its factorization.

505428972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37070 (or 37068 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 505428972 is about 22481.7475299408. The cubic root of 505428972 is about 796.5628431739.

The spelling of 505428972 in words is "five hundred five million, four hundred twenty-eight thousand, nine hundred seventy-two".