423490225 has 24 divisors (see below), whose sum is σ = 545242880. Its totient is φ = 325944000.

The previous prime is 423490201. The next prime is 423490241. The reversal of 423490225 is 522094324.

It is not a de Polignac number, because 423490225 - 2⁷ = 423490097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138766 + ... + 141784.

Almost surely, 2^423490225 is an apocalyptic number.

It is an amenable number.

423490225 is a deficient number, since it is larger than the sum of its proper divisors (121752655).

423490225 is a wasteful number, since it uses less digits than its factorization.

423490225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3241 (or 3236 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 423490225 is about 20578.8781278281. The cubic root of 423490225 is about 750.9559513953.

The spelling of 423490225 in words is "four hundred twenty-three million, four hundred ninety thousand, two hundred twenty-five".