144807438 has 16 divisors (see below), whose sum is σ = 291560400. Its totient is φ = 47944896.

The previous prime is 144807431. The next prime is 144807451. The reversal of 144807438 is 834708441.

It is a junction number, because it is equal to n+sod(n) for n = 144807396 and 144807405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144807431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80095 + ... + 81882.

It is an arithmetic number, because the mean of its divisors is an integer number (18222525).

Almost surely, 2^144807438 is an apocalyptic number.

144807438 is an abundant number, since it is smaller than the sum of its proper divisors (146752962).

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

144807438 is a wasteful number, since it uses less digits than its factorization.

144807438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162131.

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 144807438 is about 12033.5962205818. The cubic root of 144807438 is about 525.1261229865.

The spelling of 144807438 in words is "one hundred forty-four million, eight hundred seven thousand, four hundred thirty-eight".