420138807404 has 6 divisors (see below), whose sum is σ = 735242912964. Its totient is φ = 210069403700.

The previous prime is 420138807401. The next prime is 420138807481. The reversal of 420138807404 is 404708831024.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (420138807401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52517350922 + ... + 52517350929.

It is an arithmetic number, because the mean of its divisors is an integer number (122540485494).

Almost surely, 2^420138807404 is an apocalyptic number.

It is an amenable number.

420138807404 is a deficient number, since it is larger than the sum of its proper divisors (315104105560).

420138807404 is a wasteful number, since it uses less digits than its factorization.

420138807404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105034701855 (or 105034701853 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The spelling of 420138807404 in words is "four hundred twenty billion, one hundred thirty-eight million, eight hundred seven thousand, four hundred four".