23402421455044 has 6 divisors (see below), whose sum is σ = 40954237546334. Its totient is φ = 11701210727520.

The previous prime is 23402421454991. The next prime is 23402421455053. The reversal of 23402421455044 is 44055412420432.

It can be written as a sum of positive squares in only one way, i.e., 15757406593600 + 7645014861444 = 3969560^2 + 2764962^2 .

It is a super-2 number, since 2×23402421455044² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23402421454988 and 23402421455006.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2925302681877 + ... + 2925302681884.

Almost surely, 2^{23402421455044} is an apocalyptic number.

It is an amenable number.

23402421455044 is a deficient number, since it is larger than the sum of its proper divisors (17551816091290).

23402421455044 is a wasteful number, since it uses less digits than its factorization.

23402421455044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5850605363765 (or 5850605363763 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 40.

Adding to 23402421455044 its reverse (44055412420432), we get a palindrome (67457833875476).

The spelling of 23402421455044 in words is "twenty-three trillion, four hundred two billion, four hundred twenty-one million, four hundred fifty-five thousand, forty-four".