620404000 has 96 divisors (see below), whose sum is σ = 1560214656. Its totient is φ = 242323200.

The previous prime is 620403991. The next prime is 620404021. The reversal of 620404000 is 404026.

It is a super-2 number, since 2×620404000² = 769802246432000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170197 + ... + 173803.

It is an arithmetic number, because the mean of its divisors is an integer number (16252236).

Almost surely, 2^620404000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620404000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (780107328).

620404000 is an abundant number, since it is smaller than the sum of its proper divisors (939810656).

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

620404000 is a wasteful number, since it uses less digits than its factorization.

620404000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3675 (or 3657 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 620404000 is about 24907.9103900749. The cubic root of 620404000 is about 852.8870686340.

Adding to 620404000 its reverse (404026), we get a palindrome (620808026).

The spelling of 620404000 in words is "six hundred twenty million, four hundred four thousand".