620402414400 has 336 divisors, whose sum is σ = 2263346654400. Its totient is φ = 165312645120.

The previous prime is 620402414399. The next prime is 620402414413. The reversal of 620402414400 is 4414204026.

It is a happy number.

620402414400 is a `hidden beast` number, since 6 + 204 + 0 + 2 + 414 + 40 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 64492791 + ... + 64502409.

Almost surely, 2^620402414400 is an apocalyptic number.

620402414400 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 620402414400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1131673327200).

620402414400 is an abundant number, since it is smaller than the sum of its proper divisors (1642944240000).

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

620402414400 is a wasteful number, since it uses less digits than its factorization.

620402414400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11143 (or 11122 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 620402414400 its reverse (4414204026), we get a palindrome (624816618426).

The spelling of 620402414400 in words is "six hundred twenty billion, four hundred two million, four hundred fourteen thousand, four hundred".