505450730 has 32 divisors (see below), whose sum is σ = 958910400. Its totient is φ = 191296512.

The previous prime is 505450727. The next prime is 505450733. The reversal of 505450730 is 37054505.

It is an interprime number because it is at equal distance from previous prime (505450727) and next prime (505450733).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 505450693 and 505450702.

It is not an unprimeable number, because it can be changed into a prime (505450733) 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, 238154 + ... + 240266.

It is an arithmetic number, because the mean of its divisors is an integer number (29965950).

Almost surely, 2^505450730 is an apocalyptic number.

505450730 is a deficient number, since it is larger than the sum of its proper divisors (453459670).

505450730 is a wasteful number, since it uses less digits than its factorization.

505450730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 505450730 is about 22482.2314283970. The cubic root of 505450730 is about 796.5742733099.

The spelling of 505450730 in words is "five hundred five million, four hundred fifty thousand, seven hundred thirty".