144690868 has 24 divisors (see below), whose sum is σ = 297204992. Its totient is φ = 60333984.

The previous prime is 144690853. The next prime is 144690869. The reversal of 144690868 is 868096441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144690869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68796 + ... + 70867.

Almost surely, 2^144690868 is an apocalyptic number.

It is an amenable number.

144690868 is an abundant number, since it is smaller than the sum of its proper divisors (152514124).

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

144690868 is a wasteful number, since it uses less digits than its factorization.

144690868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139711 (or 139709 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 144690868 is about 12028.7517224357. The cubic root of 144690868 is about 524.9851763010.

The spelling of 144690868 in words is "one hundred forty-four million, six hundred ninety thousand, eight hundred sixty-eight".