234440732043621 has 24 divisors (see below), whose sum is σ = 339530591565984. Its totient is φ = 155881310919840.

The previous prime is 234440732043599. The next prime is 234440732043649. The reversal of 234440732043621 is 126340237044432.

234440732043621 is a `hidden beast` number, since 2 + 3 + 4 + 4 + 407 + 3 + 204 + 36 + 2 + 1 = 666.

It is not a de Polignac number, because 234440732043621 - 2⁹ = 234440732043109 is a prime.

It is a super-2 number, since 2×234440732043621² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234440732043671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25666770 + ... + 33580716.

It is an arithmetic number, because the mean of its divisors is an integer number (14147107981916).

Almost surely, 2^{234440732043621} is an apocalyptic number.

It is an amenable number.

234440732043621 is a deficient number, since it is larger than the sum of its proper divisors (105089859522363).

234440732043621 is a wasteful number, since it uses less digits than its factorization.

234440732043621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7922641 (or 7922638 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 45.

The spelling of 234440732043621 in words is "two hundred thirty-four trillion, four hundred forty billion, seven hundred thirty-two million, forty-three thousand, six hundred twenty-one".