43214021456 has 20 divisors (see below), whose sum is σ = 83750815572. Its totient is φ = 21600907776.

The previous prime is 43214021453. The next prime is 43214021489. The reversal of 43214021456 is 65412041234.

It can be written as a sum of positive squares in 2 ways, for example, as 7364385856 + 35849635600 = 85816^2 + 189340^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43214021453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322745 + ... + 436568.

Almost surely, 2^43214021456 is an apocalyptic number.

It is an amenable number.

43214021456 is a deficient number, since it is larger than the sum of its proper divisors (40536794116).

43214021456 is a wasteful number, since it uses less digits than its factorization.

43214021456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762878 (or 762872 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 43214021456 in words is "forty-three billion, two hundred fourteen million, twenty-one thousand, four hundred fifty-six".