423420105 has 16 divisors (see below), whose sum is σ = 717323904. Its totient is φ = 212540160.

The previous prime is 423420091. The next prime is 423420121. The reversal of 423420105 is 501024324.

It is not a de Polignac number, because 423420105 - 2⁴ = 423420089 is a prime.

It is a super-2 number, since 2×423420105² = 358569170636422050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 829981 + ... + 830490.

It is an arithmetic number, because the mean of its divisors is an integer number (44832744).

Almost surely, 2^423420105 is an apocalyptic number.

It is an amenable number.

423420105 is a deficient number, since it is larger than the sum of its proper divisors (293903799).

423420105 is a wasteful number, since it uses less digits than its factorization.

423420105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660496.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 423420105 is about 20577.1743687028. The cubic root of 423420105 is about 750.9145022388.

Adding to 423420105 its reverse (501024324), we get a palindrome (924444429).

The spelling of 423420105 in words is "four hundred twenty-three million, four hundred twenty thousand, one hundred five".