1052144440 has 16 divisors (see below), whose sum is σ = 2367325080. Its totient is φ = 420857760.

The previous prime is 1052144413. The next prime is 1052144461. The reversal of 1052144440 is 444412501.

It is a super-2 number, since 2×1052144440² = 2214015845245827200, which contains 22 as substring.

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, 13151766 + ... + 13151845.

Almost surely, 2^1052144440 is an apocalyptic number.

1052144440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1052144440 is an abundant number, since it is smaller than the sum of its proper divisors (1315180640).

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

1052144440 is a wasteful number, since it uses less digits than its factorization.

1052144440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26303622 (or 26303618 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 1052144440 is about 32436.7760420175. The cubic root of 1052144440 is about 1017.0878231221.

Adding to 1052144440 its reverse (444412501), we get a palindrome (1496556941).

The spelling of 1052144440 in words is "one billion, fifty-two million, one hundred forty-four thousand, four hundred forty".