1052903440 has 20 divisors (see below), whose sum is σ = 2448000684. Its totient is φ = 421161344.

The previous prime is 1052903429. The next prime is 1052903477. The reversal of 1052903440 is 443092501.

It can be written as a sum of positive squares in 2 ways, for example, as 456762384 + 596141056 = 21372^2 + 24416^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1052903440² = 2217211307927667200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1052903399 and 1052903408.

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, 6580567 + ... + 6580726.

Almost surely, 2^1052903440 is an apocalyptic number.

1052903440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1052903440 is an abundant number, since it is smaller than the sum of its proper divisors (1395097244).

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

1052903440 is a wasteful number, since it uses less digits than its factorization.

1052903440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13161306 (or 13161300 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1052903440 is about 32448.4736158729. The cubic root of 1052903440 is about 1017.3323345769.

Adding to 1052903440 its reverse (443092501), we get a palindrome (1495995941).

The spelling of 1052903440 in words is "one billion, fifty-two million, nine hundred three thousand, four hundred forty".