1040283720 has 288 divisors, whose sum is σ = 4165457400. Its totient is φ = 223727616.

The previous prime is 1040283719. The next prime is 1040283731. The reversal of 1040283720 is 273820401.

It can be written as a sum of positive squares in 4 ways, for example, as 684659556 + 355624164 = 26166^2 + 18858^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 298146 + ... + 301614.

Almost surely, 2^1040283720 is an apocalyptic number.

1040283720 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 1040283720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2082728700).

1040283720 is an abundant number, since it is smaller than the sum of its proper divisors (3125173680).

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

1040283720 is a wasteful number, since it uses less digits than its factorization.

1040283720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3517 (or 3503 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 1040283720 is about 32253.4295850844. The cubic root of 1040283720 is about 1013.2515280029.

The spelling of 1040283720 in words is "one billion, forty million, two hundred eighty-three thousand, seven hundred twenty".