244332653421 has 16 divisors (see below), whose sum is σ = 326344007808. Its totient is φ = 162605016000.

The previous prime is 244332653401. The next prime is 244332653431. The reversal of 244332653421 is 124356233442.

It is not a de Polignac number, because 244332653421 - 2⁷ = 244332653293 is a prime.

It is a super-5 number, since 5×244332653421⁵ (a number of 58 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 244332653421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244332653401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7400811 + ... + 7433751.

It is an arithmetic number, because the mean of its divisors is an integer number (20396500488).

Almost surely, 2^244332653421 is an apocalyptic number.

It is an amenable number.

244332653421 is a deficient number, since it is larger than the sum of its proper divisors (82011354387).

244332653421 is a wasteful number, since it uses less digits than its factorization.

244332653421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37172.

The product of its digits is 414720, while the sum is 39.

Adding to 244332653421 its reverse (124356233442), we get a palindrome (368688886863).

The spelling of 244332653421 in words is "two hundred forty-four billion, three hundred thirty-two million, six hundred fifty-three thousand, four hundred twenty-one".