1075643420 has 24 divisors (see below), whose sum is σ = 2280786144. Its totient is φ = 426079296.

The previous prime is 1075643411. The next prime is 1075643479. The reversal of 1075643420 is 243465701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259019 + ... + 263138.

It is an arithmetic number, because the mean of its divisors is an integer number (95032756).

Almost surely, 2^1075643420 is an apocalyptic number.

1075643420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1075643420 is an abundant number, since it is smaller than the sum of its proper divisors (1205142724).

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

1075643420 is a wasteful number, since it uses less digits than its factorization.

1075643420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522269 (or 522267 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 1075643420 is about 32797.0032167575. The cubic root of 1075643420 is about 1024.6041445822.

The spelling of 1075643420 in words is "one billion, seventy-five million, six hundred forty-three thousand, four hundred twenty".