1040155648 has 132 divisors (see below), whose sum is σ = 2471727936. Its totient is φ = 428544000.

The previous prime is 1040155643. The next prime is 1040155709. The reversal of 1040155648 is 8465510401.

1040155648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040155643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6888373 + ... + 6888523.

Almost surely, 2^1040155648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1040155648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1235863968).

1040155648 is an abundant number, since it is smaller than the sum of its proper divisors (1431572288).

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

1040155648 is an equidigital number, since it uses as much as digits as its factorization.

1040155648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 1040155648 is about 32251.4441227056. Note that the first 3 decimals coincide. The cubic root of 1040155648 is about 1013.2099449639.

It can be divided in two parts, 10401 and 55648, that added together give a square (66049 = 257²).

The spelling of 1040155648 in words is "one billion, forty million, one hundred fifty-five thousand, six hundred forty-eight".