144236455490 has 16 divisors (see below), whose sum is σ = 261218418048. Its totient is φ = 57340627056.

The previous prime is 144236455463. The next prime is 144236455523. The reversal of 144236455490 is 94554632441.

It is a super-2 number, since 2×144236455490² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44242682 + ... + 44245941.

It is an arithmetic number, because the mean of its divisors is an integer number (16326151128).

Almost surely, 2^144236455490 is an apocalyptic number.

144236455490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144236455490 is a deficient number, since it is larger than the sum of its proper divisors (116981962558).

144236455490 is a wasteful number, since it uses less digits than its factorization.

144236455490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88488793.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 144236455490 in words is "one hundred forty-four billion, two hundred thirty-six million, four hundred fifty-five thousand, four hundred ninety".