1052990720 has 54 divisors (see below), whose sum is σ = 2525025762. Its totient is φ = 420731904.

The previous prime is 1052990717. The next prime is 1052990749. The reversal of 1052990720 is 270992501.

It can be written as a sum of positive squares in only one way, i.e., 842392576 + 210598144 = 29024^2 + 14512^2 .

It is a super-2 number, since 2×1052990720² = 2217578912812236800, 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 5 ways as a sum of consecutive naturals, for example, 1160507 + ... + 1161413.

Almost surely, 2^1052990720 is an apocalyptic number.

1052990720 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 1052990720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1262512881).

1052990720 is an abundant number, since it is smaller than the sum of its proper divisors (1472035042).

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

1052990720 is an frugal number, since it uses more digits than its factorization.

1052990720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835 (or 914 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 1052990720 is about 32449.8184894769. The cubic root of 1052990720 is about 1017.3604442495.

The spelling of 1052990720 in words is "one billion, fifty-two million, nine hundred ninety thousand, seven hundred twenty".