506913428 has 18 divisors (see below), whose sum is σ = 1031931306. Its totient is φ = 217248528.

The previous prime is 506913419. The next prime is 506913437. The reversal of 506913428 is 824319605.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (506913419) and next prime (506913437).

It can be written as a sum of positive squares in only one way, i.e., 506160004 + 753424 = 22498^2 + 868^2 .

It is a super-2 number, since 2×506913428² = 513922446973422368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 506913391 and 506913400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1292951 + ... + 1293342.

It is an arithmetic number, because the mean of its divisors is an integer number (57329517).

Almost surely, 2^506913428 is an apocalyptic number.

It is an amenable number.

506913428 is an abundant number, since it is smaller than the sum of its proper divisors (525017878).

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

506913428 is a wasteful number, since it uses less digits than its factorization.

506913428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586311 (or 2586302 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 506913428 is about 22514.7380175742. The cubic root of 506913428 is about 797.3419218068.

The spelling of 506913428 in words is "five hundred six million, nine hundred thirteen thousand, four hundred twenty-eight".