144819420 has 24 divisors (see below), whose sum is σ = 405494544. Its totient is φ = 38618496.

The previous prime is 144819407. The next prime is 144819427. The reversal of 144819420 is 24918441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144819427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1206769 + ... + 1206888.

It is an arithmetic number, because the mean of its divisors is an integer number (16895606).

Almost surely, 2^144819420 is an apocalyptic number.

144819420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144819420 is an abundant number, since it is smaller than the sum of its proper divisors (260675124).

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

144819420 is a wasteful number, since it uses less digits than its factorization.

144819420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413669 (or 2413667 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 144819420 is about 12034.0940664431. The cubic root of 144819420 is about 525.1406063302.

The spelling of 144819420 in words is "one hundred forty-four million, eight hundred nineteen thousand, four hundred twenty".