144779408 has 30 divisors (see below), whose sum is σ = 283661346. Its totient is φ = 71581696.

The previous prime is 144779407. The next prime is 144779417. The reversal of 144779408 is 804977441.

It can be written as a sum of positive squares in 3 ways, for example, as 114661264 + 30118144 = 10708^2 + 5488^2 .

It is a super-2 number, since 2×144779408² = 41922153961660928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144779407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 563216 + ... + 563472.

Almost surely, 2^144779408 is an apocalyptic number.

It is an amenable number.

144779408 is a deficient number, since it is larger than the sum of its proper divisors (138881938).

144779408 is an equidigital number, since it uses as much as digits as its factorization.

144779408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 144779408 is about 12032.4315082198. The cubic root of 144779408 is about 525.0922383664.

The spelling of 144779408 in words is "one hundred forty-four million, seven hundred seventy-nine thousand, four hundred eight".