144408694 has 4 divisors (see below), whose sum is σ = 216613044. Its totient is φ = 72204346.

The previous prime is 144408643. The next prime is 144408703. The reversal of 144408694 is 496804441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 496804441 = 7 ⋅70972063.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36102172 + ... + 36102175.

It is an arithmetic number, because the mean of its divisors is an integer number (54153261).

Almost surely, 2^144408694 is an apocalyptic number.

144408694 is a deficient number, since it is larger than the sum of its proper divisors (72204350).

144408694 is an equidigital number, since it uses as much as digits as its factorization.

144408694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72204349.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 144408694 is about 12017.0168511158. The cubic root of 144408694 is about 524.6436814254.

The spelling of 144408694 in words is "one hundred forty-four million, four hundred eight thousand, six hundred ninety-four".