144936420 has 24 divisors (see below), whose sum is σ = 405822144. Its totient is φ = 38649696.

The previous prime is 144936419. The next prime is 144936433. The reversal of 144936420 is 24639441.

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 7 ways as a sum of consecutive naturals, for example, 1207744 + ... + 1207863.

It is an arithmetic number, because the mean of its divisors is an integer number (16909256).

Almost surely, 2^144936420 is an apocalyptic number.

144936420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144936420 is an abundant number, since it is smaller than the sum of its proper divisors (260885724).

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

144936420 is a wasteful number, since it uses less digits than its factorization.

144936420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415619 (or 2415617 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 144936420 is about 12038.9542735239. The cubic root of 144936420 is about 525.2819890999.

The spelling of 144936420 in words is "one hundred forty-four million, nine hundred thirty-six thousand, four hundred twenty".