1043455640 has 32 divisors (see below), whose sum is σ = 2348710560. Its totient is φ = 417216000.

The previous prime is 1043455607. The next prime is 1043455681. The reversal of 1043455640 is 465543401.

It is a junction number, because it is equal to n+sod(n) for n = 1043455597 and 1043455606.

It is a congruent number.

It is an unprimeable number.

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, 166565 + ... + 172715.

It is an arithmetic number, because the mean of its divisors is an integer number (73397205).

Almost surely, 2^1043455640 is an apocalyptic number.

1043455640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1043455640 is an abundant number, since it is smaller than the sum of its proper divisors (1305254920).

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

1043455640 is a wasteful number, since it uses less digits than its factorization.

1043455640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10403 (or 10399 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 1043455640 is about 32302.5639849223. The cubic root of 1043455640 is about 1014.2803152148.

The spelling of 1043455640 in words is "one billion, forty-three million, four hundred fifty-five thousand, six hundred forty".