423278206 has 16 divisors (see below), whose sum is σ = 723978864. Its totient is φ = 183867264.

The previous prime is 423278183. The next prime is 423278231. The reversal of 423278206 is 602872324.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

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, 478380 + ... + 479263.

It is an arithmetic number, because the mean of its divisors is an integer number (45248679).

Almost surely, 2^423278206 is an apocalyptic number.

423278206 is a deficient number, since it is larger than the sum of its proper divisors (300700658).

423278206 is a wasteful number, since it uses less digits than its factorization.

423278206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957675.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 423278206 is about 20573.7261088020. The cubic root of 423278206 is about 750.8306092596.

The spelling of 423278206 in words is "four hundred twenty-three million, two hundred seventy-eight thousand, two hundred six".