501429960 has 256 divisors, whose sum is σ = 1828915200. Its totient is φ = 121651200.

The previous prime is 501429941. The next prime is 501429961. The reversal of 501429960 is 69924105.

501429960 = T₂₀₅ + T₂₀₆ + ... + T₁₄₄₄.

501429960 is a `hidden beast` number, since 501 + 4 + 2 + 99 + 60 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (501429961) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 568720 + ... + 569600.

It is an arithmetic number, because the mean of its divisors is an integer number (7144200).

Almost surely, 2^501429960 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 501429960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (914457600).

501429960 is an abundant number, since it is smaller than the sum of its proper divisors (1327485240).

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

501429960 is a wasteful number, since it uses less digits than its factorization.

501429960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 501429960 is about 22392.6318238835. The cubic root of 501429960 is about 794.4564458208.

The spelling of 501429960 in words is "five hundred one million, four hundred twenty-nine thousand, nine hundred sixty".