502161428 has 6 divisors (see below), whose sum is σ = 878782506. Its totient is φ = 251080712.

The previous prime is 502161427. The next prime is 502161433. The reversal of 502161428 is 824161205.

It can be written as a sum of positive squares in only one way, i.e., 412821124 + 89340304 = 20318^2 + 9452^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 502161428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (502161427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62770175 + ... + 62770182.

It is an arithmetic number, because the mean of its divisors is an integer number (146463751).

Almost surely, 2^502161428 is an apocalyptic number.

It is an amenable number.

502161428 is a deficient number, since it is larger than the sum of its proper divisors (376621078).

502161428 is a wasteful number, since it uses less digits than its factorization.

502161428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125540361 (or 125540359 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 502161428 is about 22408.9586549665. The cubic root of 502161428 is about 794.8425662966.

The spelling of 502161428 in words is "five hundred two million, one hundred sixty-one thousand, four hundred twenty-eight".