144820830 has 128 divisors (see below), whose sum is σ = 439934976. Its totient is φ = 29635200.

The previous prime is 144820813. The next prime is 144820843. The reversal of 144820830 is 38028441.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 63 ways as a sum of consecutive naturals, for example, 163569 + ... + 164451.

It is an arithmetic number, because the mean of its divisors is an integer number (3436992).

Almost surely, 2^144820830 is an apocalyptic number.

144820830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 144820830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219967488).

144820830 is an abundant number, since it is smaller than the sum of its proper divisors (295114146).

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

144820830 is a wasteful number, since it uses less digits than its factorization.

144820830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 144820830 is about 12034.1526498545. The cubic root of 144820830 is about 525.1423106270.

The spelling of 144820830 in words is "one hundred forty-four million, eight hundred twenty thousand, eight hundred thirty".