1052288720 has 120 divisors (see below), whose sum is σ = 2858129568. Its totient is φ = 359251200.

The previous prime is 1052288719. The next prime is 1052288747. The reversal of 1052288720 is 278822501.

It is a Cunningham number, because it is equal to 32439²-1.

It is a super-2 number, since 2×1052288720² = 2214623100478476800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1297115 + ... + 1297925.

Almost surely, 2^1052288720 is an apocalyptic number.

1052288720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1052288720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1429064784).

1052288720 is an abundant number, since it is smaller than the sum of its proper divisors (1805840848).

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

1052288720 is a wasteful number, since it uses less digits than its factorization.

1052288720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169 (or 1156 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 1052288720 is about 32438.9999845865. Note that the first 4 decimals coincide. The cubic root of 1052288720 is about 1017.1343118988.

The spelling of 1052288720 in words is "one billion, fifty-two million, two hundred eighty-eight thousand, seven hundred twenty".