620046144 has 112 divisors (see below), whose sum is σ = 1902195840. Its totient is φ = 197683200.

The previous prime is 620046127. The next prime is 620046181. The reversal of 620046144 is 441640026.

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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31944 + ... + 47544.

Almost surely, 2^620046144 is an apocalyptic number.

620046144 is a gapful number since it is divisible by the number (64) 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 620046144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (951097920).

620046144 is an abundant number, since it is smaller than the sum of its proper divisors (1282149696).

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

620046144 is a wasteful number, since it uses less digits than its factorization.

620046144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15645 (or 15629 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 620046144 is about 24900.7257725553. The cubic root of 620046144 is about 852.7230521455.

The spelling of 620046144 in words is "six hundred twenty million, forty-six thousand, one hundred forty-four".