144174420 has 72 divisors (see below), whose sum is σ = 470977416. Its totient is φ = 35488512.

The previous prime is 144174379. The next prime is 144174461. The reversal of 144174420 is 24471441.

It is an interprime number because it is at equal distance from previous prime (144174379) and next prime (144174461).

It can be written as a sum of positive squares in 4 ways, for example, as 8964036 + 135210384 = 2994^2 + 11628^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28467 + ... + 33146.

It is an arithmetic number, because the mean of its divisors is an integer number (6541353).

Almost surely, 2^144174420 is an apocalyptic number.

144174420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144174420 is an abundant number, since it is smaller than the sum of its proper divisors (326802996).

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

144174420 is a wasteful number, since it uses less digits than its factorization.

144174420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61641 (or 61636 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 144174420 is about 12007.2653006419. The cubic root of 144174420 is about 524.3598183233.

The spelling of 144174420 in words is "one hundred forty-four million, one hundred seventy-four thousand, four hundred twenty".