1040120000 has 70 divisors (see below), whose sum is σ = 2579258748. Its totient is φ = 416032000.

The previous prime is 1040119981. The next prime is 1040120017. The reversal of 1040120000 is 210401.

It is a super-2 number, since 2×1040120000² = 2163699228800000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1040120000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 26999 + ... + 53001.

Almost surely, 2^1040120000 is an apocalyptic number.

1040120000 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 1040120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1289629374).

1040120000 is an abundant number, since it is smaller than the sum of its proper divisors (1539138748).

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

1040120000 is an frugal number, since it uses more digits than its factorization.

1040120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26035 (or 26010 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1040120000 is about 32250.8914605473. The cubic root of 1040120000 is about 1013.1983699909.

Adding to 1040120000 its reverse (210401), we get a palindrome (1040330401).

The spelling of 1040120000 in words is "one billion, forty million, one hundred twenty thousand".