1040615780 has 24 divisors (see below), whose sum is σ = 2226527352. Its totient is φ = 408392192.

The previous prime is 1040615777. The next prime is 1040615783. The reversal of 1040615780 is 875160401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1040615777) and next prime (1040615783).

It can be written as a sum of positive squares in 4 ways, for example, as 3904576 + 1036711204 = 1976^2 + 32198^2 .

It is not an unprimeable number, because it can be changed into a prime (1040615783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489797 + ... + 491916.

It is an arithmetic number, because the mean of its divisors is an integer number (92771973).

Almost surely, 2^1040615780 is an apocalyptic number.

1040615780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040615780 is an abundant number, since it is smaller than the sum of its proper divisors (1185911572).

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

1040615780 is a wasteful number, since it uses less digits than its factorization.

1040615780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981775 (or 981773 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 1040615780 is about 32258.5768439961. The cubic root of 1040615780 is about 1013.3593269629.

The spelling of 1040615780 in words is "one billion, forty million, six hundred fifteen thousand, seven hundred eighty".