144443402 has 8 divisors (see below), whose sum is σ = 217018116. Its totient is φ = 72104032.

The previous prime is 144443399. The next prime is 144443413. The reversal of 144443402 is 204344441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 143736121 + 707281 = 11989^2 + 841^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57293 + ... + 59760.

Almost surely, 2^144443402 is an apocalyptic number.

144443402 is a deficient number, since it is larger than the sum of its proper divisors (72574714).

144443402 is a wasteful number, since it uses less digits than its factorization.

144443402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117672.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 144443402 is about 12018.4608831580. The cubic root of 144443402 is about 524.6857099989.

Adding to 144443402 its reverse (204344441), we get a palindrome (348787843).

The spelling of 144443402 in words is "one hundred forty-four million, four hundred forty-three thousand, four hundred two".