423401600 has 48 divisors (see below), whose sum is σ = 1045942170. Its totient is φ = 169359360.

The previous prime is 423401581. The next prime is 423401603. The reversal of 423401600 is 6104324.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 255232576 + 168169024 = 15976^2 + 12968^2 .

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (423401603) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 62957 + ... + 69356.

Almost surely, 2^423401600 is an apocalyptic number.

423401600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423401600 is an abundant number, since it is smaller than the sum of its proper divisors (622540570).

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

423401600 is a wasteful number, since it uses less digits than its factorization.

423401600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132337 (or 132320 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 423401600 is about 20576.7247150755. The cubic root of 423401600 is about 750.9035628469.

Adding to 423401600 its reverse (6104324), we get a palindrome (429505924).

The spelling of 423401600 in words is "four hundred twenty-three million, four hundred one thousand, six hundred".