1040253320 has 16 divisors (see below), whose sum is σ = 2340570060. Its totient is φ = 416101312.

The previous prime is 1040253293. The next prime is 1040253337. The reversal of 1040253320 is 233520401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1025152324 + 15100996 = 32018^2 + 3886^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1040253292 and 1040253301.

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, 13003127 + ... + 13003206.

Almost surely, 2^1040253320 is an apocalyptic number.

1040253320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040253320 is an abundant number, since it is smaller than the sum of its proper divisors (1300316740).

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

1040253320 is a wasteful number, since it uses less digits than its factorization.

1040253320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26006344 (or 26006340 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1040253320 is about 32252.9583139284. The cubic root of 1040253320 is about 1013.2416578922.

Adding to 1040253320 its reverse (233520401), we get a palindrome (1273773721).

The spelling of 1040253320 in words is "one billion, forty million, two hundred fifty-three thousand, three hundred twenty".