1052420 has 24 divisors (see below), whose sum is σ = 2236248. Its totient is φ = 416000.

The previous prime is 1052417. The next prime is 1052431. The reversal of 1052420 is 242501.

It can be written as a sum of positive squares in 4 ways, for example, as 246016 + 806404 = 496^2 + 898^2 .

It is a super-2 number, since 2×1052420² = 2215175712800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1052395 and 1052404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1760 + ... + 2280.

It is an arithmetic number, because the mean of its divisors is an integer number (93177).

2^1052420 is an apocalyptic number.

1052420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1052420 is an abundant number, since it is smaller than the sum of its proper divisors (1183828).

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

1052420 is a wasteful number, since it uses less digits than its factorization.

1052420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 1052420 is about 1025.8752360789. The cubic root of 1052420 is about 101.7176608225.

Adding to 1052420 its reverse (242501), we get a palindrome (1294921).

The spelling of 1052420 in words is "one million, fifty-two thousand, four hundred twenty".