423464278 has 16 divisors (see below), whose sum is σ = 656308224. Its totient is φ = 204707880.

The previous prime is 423464231. The next prime is 423464287. The reversal of 423464278 is 872464324.

It is a super-3 number, since 3×423464278³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 423464278.

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, 79701 + ... + 84847.

It is an arithmetic number, because the mean of its divisors is an integer number (41019264).

Almost surely, 2^423464278 is an apocalyptic number.

423464278 is a deficient number, since it is larger than the sum of its proper divisors (232843946).

423464278 is a wasteful number, since it uses less digits than its factorization.

423464278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6507.

The product of its digits is 258048, while the sum is 40.

The square root of 423464278 is about 20578.2476902189. The cubic root of 423464278 is about 750.9406142038.

The spelling of 423464278 in words is "four hundred twenty-three million, four hundred sixty-four thousand, two hundred seventy-eight".