21834245032 has 8 divisors (see below), whose sum is σ = 40939209450. Its totient is φ = 10917122512.

The previous prime is 21834245021. The next prime is 21834245039. The reversal of 21834245032 is 23054243812.

It can be written as a sum of positive squares in only one way, i.e., 17807834916 + 4026410116 = 133446^2 + 63454^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×21834245032² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21834245039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1364640307 + ... + 1364640322.

Almost surely, 2^21834245032 is an apocalyptic number.

It is an amenable number.

21834245032 is a deficient number, since it is larger than the sum of its proper divisors (19104964418).

21834245032 is a wasteful number, since it uses less digits than its factorization.

21834245032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729280635 (or 2729280631 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 21834245032 its reverse (23054243812), we get a palindrome (44888488844).

The spelling of 21834245032 in words is "twenty-one billion, eight hundred thirty-four million, two hundred forty-five thousand, thirty-two".