402421123044 has 36 divisors (see below), whose sum is σ = 1020162705744. Its totient is φ = 133753798512.

The previous prime is 402421123001. The next prime is 402421123099. The reversal of 402421123044 is 440321124204.

402421123044 is a `hidden beast` number, since 4 + 0 + 2 + 421 + 1 + 230 + 4 + 4 = 666.

402421123044 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 402421122999 and 402421123017.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16094662 + ... + 16119645.

Almost surely, 2^402421123044 is an apocalyptic number.

It is an amenable number.

402421123044 is an abundant number, since it is smaller than the sum of its proper divisors (617741582700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402421123044 is a wasteful number, since it uses less digits than its factorization.

402421123044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32214664 (or 32214659 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 402421123044 its reverse (440321124204), we get a palindrome (842742247248).

The spelling of 402421123044 in words is "four hundred two billion, four hundred twenty-one million, one hundred twenty-three thousand, forty-four".