1052525440 has 32 divisors (see below), whose sum is σ = 2516195160. Its totient is φ = 421009920.

The previous prime is 1052525431. The next prime is 1052525459. The reversal of 1052525440 is 445252501.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1052525440² = 2215619603694387200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1052525399 and 1052525408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 821646 + ... + 822925.

Almost surely, 2^1052525440 is an apocalyptic number.

1052525440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1052525440 is an abundant number, since it is smaller than the sum of its proper divisors (1463669720).

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

1052525440 is an equidigital number, since it uses as much as digits as its factorization.

1052525440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644590 (or 1644578 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 1052525440 is about 32442.6484738839. The cubic root of 1052525440 is about 1017.2105767671.

Adding to 1052525440 its reverse (445252501), we get a palindrome (1497777941).

The spelling of 1052525440 in words is "one billion, fifty-two million, five hundred twenty-five thousand, four hundred forty".