420000354 has 24 divisors (see below), whose sum is σ = 923585520. Its totient is φ = 137910168.

The previous prime is 420000349. The next prime is 420000389. The reversal of 420000354 is 453000024.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172924 + ... + 175335.

It is an arithmetic number, because the mean of its divisors is an integer number (38482730).

Almost surely, 2^420000354 is an apocalyptic number.

420000354 is an abundant number, since it is smaller than the sum of its proper divisors (503585166).

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

420000354 is a wasteful number, since it uses less digits than its factorization.

420000354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348334 (or 348331 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 420000354 is about 20493.9101686330. The cubic root of 420000354 is about 748.8874491234.

Adding to 420000354 its reverse (453000024), we get a palindrome (873000378).

The spelling of 420000354 in words is "four hundred twenty million, three hundred fifty-four", and thus it is an aban number.