423420401000 has 32 divisors (see below), whose sum is σ = 990803740680. Its totient is φ = 169368160000.

The previous prime is 423420400993. The next prime is 423420401011. The reversal of 423420401000 is 104024324.

It can be written as a sum of positive squares in 4 ways, for example, as 213423672484 + 209996728516 = 461978^2 + 458254^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211709201 + ... + 211711200.

Almost surely, 2^423420401000 is an apocalyptic number.

423420401000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423420401000 is an abundant number, since it is smaller than the sum of its proper divisors (567383339680).

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

423420401000 is a wasteful number, since it uses less digits than its factorization.

423420401000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423420422 (or 423420408 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 423420401000 its reverse (104024324), we get a palindrome (423524425324).

The spelling of 423420401000 in words is "four hundred twenty-three billion, four hundred twenty million, four hundred one thousand".