63420000 has 240 divisors, whose sum is σ = 239323392. Its totient is φ = 14400000.

The previous prime is 63419999. The next prime is 63420011. The reversal of 63420000 is 2436.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 419925 + ... + 420075.

Almost surely, 2^63420000 is an apocalyptic number.

63420000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119661696).

63420000 is an abundant number, since it is smaller than the sum of its proper divisors (175903392).

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

63420000 is a wasteful number, since it uses less digits than its factorization.

63420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 63420000 is about 7963.6674968258. The cubic root of 63420000 is about 398.7879980037.

Adding to 63420000 its reverse (2436), we get a palindrome (63422436).

The spelling of 63420000 in words is "sixty-three million, four hundred twenty thousand".