144367690 has 16 divisors (see below), whose sum is σ = 264267360. Its totient is φ = 56768080.

The previous prime is 144367669. The next prime is 144367693. The reversal of 144367690 is 96763441.

It is a super-2 number, since 2×144367690² = 41684059831872200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144367693) 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, 121756 + ... + 122935.

It is an arithmetic number, because the mean of its divisors is an integer number (16516710).

Almost surely, 2^144367690 is an apocalyptic number.

144367690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144367690 is a deficient number, since it is larger than the sum of its proper divisors (119899670).

144367690 is a wasteful number, since it uses less digits than its factorization.

144367690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244757.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 144367690 is about 12015.3106493340. The cubic root of 144367690 is about 524.5940202281.

The spelling of 144367690 in words is "one hundred forty-four million, three hundred sixty-seven thousand, six hundred ninety".