500771640 has 64 divisors (see below), whose sum is σ = 1567641600. Its totient is φ = 127732352.

The previous prime is 500771629. The next prime is 500771641. The reversal of 500771640 is 46177005.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 500771598 and 500771607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500771641) 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, 87960 + ... + 93479.

It is an arithmetic number, because the mean of its divisors is an integer number (24494400).

Almost surely, 2^500771640 is an apocalyptic number.

It is an amenable number.

500771640 is an abundant number, since it is smaller than the sum of its proper divisors (1066869960).

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

500771640 is a wasteful number, since it uses less digits than its factorization.

500771640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181476 (or 181472 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 500771640 is about 22377.9275179807. The cubic root of 500771640 is about 794.1086168391.

The spelling of 500771640 in words is "five hundred million, seven hundred seventy-one thousand, six hundred forty".