1052440 has 32 divisors (see below), whose sum is σ = 2404080. Its totient is φ = 414592.

The previous prime is 1052437. The next prime is 1052459. The reversal of 1052440 is 442501.

It is a super-2 number, since 2×1052440² = 2215259907200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3162 + ... + 3478.

2^1052440 is an apocalyptic number.

1052440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1052440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1202040).

1052440 is an abundant number, since it is smaller than the sum of its proper divisors (1351640).

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

1052440 is a wasteful number, since it uses less digits than its factorization.

1052440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1052440 is about 1025.8849838067. The cubic root of 1052440 is about 101.7183051598.

Adding to 1052440 its reverse (442501), we get a palindrome (1494941).

The spelling of 1052440 in words is "one million, fifty-two thousand, four hundred forty".