1052665440 has 48 divisors (see below), whose sum is σ = 3315897648. Its totient is φ = 280710656.

The previous prime is 1052665423. The next prime is 1052665457. The reversal of 1052665440 is 445662501.

It is an interprime number because it is at equal distance from previous prime (1052665423) and next prime (1052665457).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1052665440² = 2216209057140787200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1096047 + ... + 1097006.

It is an arithmetic number, because the mean of its divisors is an integer number (69081201).

Almost surely, 2^1052665440 is an apocalyptic number.

1052665440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1052665440 is an abundant number, since it is smaller than the sum of its proper divisors (2263232208).

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

1052665440 is a wasteful number, since it uses less digits than its factorization.

1052665440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193071 (or 2193063 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 1052665440 is about 32444.8060558235. The cubic root of 1052665440 is about 1017.2556756507.

The spelling of 1052665440 in words is "one billion, fifty-two million, six hundred sixty-five thousand, four hundred forty".