1032640240 has 40 divisors (see below), whose sum is σ = 2418438960. Its totient is φ = 410036736.

The previous prime is 1032640237. The next prime is 1032640241. The reversal of 1032640240 is 420462301.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1032640241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36150 + ... + 58069.

It is an arithmetic number, because the mean of its divisors is an integer number (60460974).

Almost surely, 2^1032640240 is an apocalyptic number.

1032640240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1032640240 is an abundant number, since it is smaller than the sum of its proper divisors (1385798720).

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

1032640240 is a wasteful number, since it uses less digits than its factorization.

1032640240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94369 (or 94363 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1032640240 is about 32134.7201637108. The cubic root of 1032640240 is about 1010.7638048097.

The spelling of 1032640240 in words is "one billion, thirty-two million, six hundred forty thousand, two hundred forty".