1052523440 has 40 divisors (see below), whose sum is σ = 2448587328. Its totient is φ = 420756480.

The previous prime is 1052523421. The next prime is 1052523443. The reversal of 1052523440 is 443252501.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1052523440² = 2215611183498867200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1052523443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187880 + ... + 193400.

Almost surely, 2^1052523440 is an apocalyptic number.

1052523440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1052523440 is an abundant number, since it is smaller than the sum of its proper divisors (1396063888).

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

1052523440 is a wasteful number, since it uses less digits than its factorization.

1052523440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7917 (or 7911 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1052523440 is about 32442.6176502452. The cubic root of 1052523440 is about 1017.2099324683.

Adding to 1052523440 its reverse (443252501), we get a palindrome (1495775941).

The spelling of 1052523440 in words is "one billion, fifty-two million, five hundred twenty-three thousand, four hundred forty".