505406148 has 24 divisors (see below), whose sum is σ = 1269995328. Its totient is φ = 155509536.

The previous prime is 505406147. The next prime is 505406149. The reversal of 505406148 is 841604505.

It is an interprime number because it is at equal distance from previous prime (505406147) and next prime (505406149).

It is not an unprimeable number, because it can be changed into a prime (505406147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1619736 + ... + 1620047.

It is an arithmetic number, because the mean of its divisors is an integer number (52916472).

Almost surely, 2^505406148 is an apocalyptic number.

It is an amenable number.

505406148 is an abundant number, since it is smaller than the sum of its proper divisors (764589180).

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

505406148 is a wasteful number, since it uses less digits than its factorization.

505406148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3239803 (or 3239801 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 505406148 is about 22481.2399124248. The cubic root of 505406148 is about 796.5508526833.

The spelling of 505406148 in words is "five hundred five million, four hundred six thousand, one hundred forty-eight".