1052405320 has 32 divisors (see below), whose sum is σ = 2368838520. Its totient is φ = 420797440.

The previous prime is 1052405317. The next prime is 1052405351. The reversal of 1052405320 is 235042501.

It can be written as a sum of positive squares in 4 ways, for example, as 582643044 + 469762276 = 24138^2 + 21674^2 .

It is a super-2 number, since 2×1052405320² = 2215113915128604800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1052405291 and 1052405300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186054 + ... + 191626.

Almost surely, 2^1052405320 is an apocalyptic number.

1052405320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1052405320 is an abundant number, since it is smaller than the sum of its proper divisors (1316433200).

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

1052405320 is a wasteful number, since it uses less digits than its factorization.

1052405320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10305 (or 10301 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1052405320 is about 32440.7971542008. The cubic root of 1052405320 is about 1017.1718787371.

Adding to 1052405320 its reverse (235042501), we get a palindrome (1287447821).

The spelling of 1052405320 in words is "one billion, fifty-two million, four hundred five thousand, three hundred twenty".