144778896 has 30 divisors (see below), whose sum is σ = 405180230. Its totient is φ = 48259584.

The previous prime is 144778889. The next prime is 144778903. The reversal of 144778896 is 698877441.

It is a happy number.

144778896 is a `hidden beast` number, since 1 + 4 + 477 + 88 + 96 = 666.

It is an interprime number because it is at equal distance from previous prime (144778889) and next prime (144778903).

It can be written as a sum of positive squares in only one way, i.e., 109495296 + 35283600 = 10464^2 + 5940^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 502561 + ... + 502848.

Almost surely, 2^144778896 is an apocalyptic number.

144778896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

144778896 is an abundant number, since it is smaller than the sum of its proper divisors (260401334).

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

144778896 is a wasteful number, since it uses less digits than its factorization.

144778896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005423 (or 1005414 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 144778896 is about 12032.4102323682. The cubic root of 144778896 is about 525.0916193844.

The spelling of 144778896 in words is "one hundred forty-four million, seven hundred seventy-eight thousand, eight hundred ninety-six".