144341640 has 48 divisors (see below), whose sum is σ = 469111500. Its totient is φ = 38491008.

The previous prime is 144341633. The next prime is 144341647. The reversal of 144341640 is 46143441.

144341640 is a `hidden beast` number, since 14 + 4 + 3 + 4 + 1 + 640 = 666.

It is an interprime number because it is at equal distance from previous prime (144341633) and next prime (144341647).

It can be written as a sum of positive squares in 2 ways, for example, as 129549924 + 14791716 = 11382^2 + 3846^2 .

It is not an unprimeable number, because it can be changed into a prime (144341647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200115 + ... + 200834.

Almost surely, 2^144341640 is an apocalyptic number.

144341640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144341640 is an abundant number, since it is smaller than the sum of its proper divisors (324769860).

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

144341640 is a wasteful number, since it uses less digits than its factorization.

144341640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400966 (or 400959 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 144341640 is about 12014.2265668665. The cubic root of 144341640 is about 524.5624653923.

The spelling of 144341640 in words is "one hundred forty-four million, three hundred forty-one thousand, six hundred forty".