421140004024 has 8 divisors (see below), whose sum is σ = 789637507560. Its totient is φ = 210570002008.

The previous prime is 421140004003. The next prime is 421140004039. The reversal of 421140004024 is 420400041124.

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

It is a junction number, because it is equal to n+sod(n) for n = 421140003986 and 421140004004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26321250244 + ... + 26321250259.

It is an arithmetic number, because the mean of its divisors is an integer number (98704688445).

Almost surely, 2^421140004024 is an apocalyptic number.

It is an amenable number.

421140004024 is a deficient number, since it is larger than the sum of its proper divisors (368497503536).

421140004024 is a wasteful number, since it uses less digits than its factorization.

421140004024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52642500509 (or 52642500505 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 421140004024 its reverse (420400041124), we get a palindrome (841540045148).

The spelling of 421140004024 in words is "four hundred twenty-one billion, one hundred forty million, four thousand, twenty-four".